diff options
| -rw-r--r-- | drivers/media/dvb/dvb-usb/anysee.c | 4 | ||||
| -rw-r--r-- | drivers/media/dvb/dvb-usb/dvb_usb.h | 111 | ||||
| -rw-r--r-- | drivers/media/dvb/dvb-usb/dvb_usb_core.c | 91 | ||||
| -rw-r--r-- | drivers/media/dvb/dvb-usb/usb_urb.c | 36 |
4 files changed, 109 insertions, 133 deletions
diff --git a/drivers/media/dvb/dvb-usb/anysee.c b/drivers/media/dvb/dvb-usb/anysee.c index 2655034..9de0004 100644 --- a/drivers/media/dvb/dvb-usb/anysee.c +++ b/drivers/media/dvb/dvb-usb/anysee.c @@ -1264,7 +1264,7 @@ static int anysee_init(struct dvb_usb_device *d) return 0; } -static void anysee_disconnect(struct dvb_usb_device *d) +static void anysee_exit(struct dvb_usb_device *d) { return anysee_ci_release(d); } @@ -1287,7 +1287,7 @@ static struct dvb_usb_device_properties anysee_props = { .get_rc_config = anysee_get_rc_config, .frontend_ctrl = anysee_frontend_ctrl, .streaming_ctrl = anysee_streaming_ctrl, - .disconnect = anysee_disconnect, + .exit = anysee_exit, .num_adapters = 1, .adapter = { diff --git a/drivers/media/dvb/dvb-usb/dvb_usb.h b/drivers/media/dvb/dvb-usb/dvb_usb.h index a87a9ff..56bf3a7 100644 --- a/drivers/media/dvb/dvb-usb/dvb_usb.h +++ b/drivers/media/dvb/dvb-usb/dvb_usb.h @@ -10,10 +10,8 @@ #ifndef DVB_USB_H #define DVB_USB_H -#include <linux/input.h> -#include <linux/usb.h> +#include <linux/usb/input.h> #include <linux/firmware.h> -#include <linux/mutex.h> #include <media/rc-core.h> #include "dvb_frontend.h" @@ -65,15 +63,35 @@ .rc_map = (rc), \ }) +struct dvb_usb_device; +struct dvb_usb_adapter; + struct dvb_usb_driver_info { const char *name; const char *rc_map; const struct dvb_usb_device_properties *props; }; -struct dvb_usb_device; -struct dvb_usb_adapter; -struct usb_data_stream; +/** + * struct dvb_rc properties of remote controller, using rc-core + * @rc_codes: name of rc codes table + * @protocol: type of protocol(s) currently used by the driver + * @allowed_protos: protocol(s) supported by the driver + * @driver_type: Used to point if a device supports raw mode + * @change_protocol: callback to change protocol + * @rc_query: called to query an event event. + * @rc_interval: time in ms between two queries. + * @bulk_mode: device supports bulk mode for RC (disable polling mode) + */ +struct dvb_usb_rc { + char *map_name; + u64 allowed_protos; + int (*change_protocol)(struct rc_dev *dev, u64 rc_type); + int (*query) (struct dvb_usb_device *d); + unsigned int interval; + const enum rc_driver_type driver_type; + bool bulk_mode; +}; /** * Properties of USB streaming - TODO this structure should be somewhere else @@ -83,13 +101,13 @@ struct usb_data_stream; struct usb_data_stream_properties { #define USB_BULK 1 #define USB_ISOC 2 - int type; - int count; - int endpoint; + u8 type; + u8 count; + u8 endpoint; union { struct { - int buffersize; /* per URB */ + unsigned int buffersize; /* per URB */ } bulk; struct { int framesperurb; @@ -124,10 +142,9 @@ struct dvb_usb_adapter_properties { #define DVB_USB_ADAP_HAS_PID_FILTER 0x01 #define DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF 0x02 #define DVB_USB_ADAP_NEED_PID_FILTERING 0x04 - int caps; - int size_of_priv; + u8 caps; - int pid_filter_count; + u8 pid_filter_count; int (*pid_filter_ctrl) (struct dvb_usb_adapter *, int); int (*pid_filter) (struct dvb_usb_adapter *, int, u16, int); @@ -135,27 +152,6 @@ struct dvb_usb_adapter_properties { }; /** - * struct dvb_rc properties of remote controller, using rc-core - * @rc_codes: name of rc codes table - * @protocol: type of protocol(s) currently used by the driver - * @allowed_protos: protocol(s) supported by the driver - * @driver_type: Used to point if a device supports raw mode - * @change_protocol: callback to change protocol - * @rc_query: called to query an event event. - * @rc_interval: time in ms between two queries. - * @bulk_mode: device supports bulk mode for RC (disable polling mode) - */ -struct dvb_usb_rc { - char *map_name; - u64 allowed_protos; - int (*change_protocol)(struct rc_dev *dev, u64 rc_type); - int (*query) (struct dvb_usb_device *d); - int interval; - const enum rc_driver_type driver_type; - bool bulk_mode; -}; - -/** * struct dvb_usb_device_properties - properties of a dvb-usb-device * @owner: owner of the dvb_adapter * @usb_ctrl: which USB device-side controller is in use. Needed for firmware @@ -196,8 +192,11 @@ struct dvb_usb_device_properties { const char *driver_name; struct module *owner; short *adapter_nr; + u8 bInterfaceNumber; - int size_of_priv; + unsigned int size_of_priv; + u8 generic_bulk_ctrl_endpoint; + u8 generic_bulk_ctrl_endpoint_response; #define WARM 0 #define COLD 1 @@ -207,11 +206,12 @@ struct dvb_usb_device_properties { int (*download_firmware) (struct dvb_usb_device *, const struct firmware *); - int num_adapters; - int (*get_adapter_count) (struct dvb_usb_device *); - struct dvb_usb_adapter_properties adapter[MAX_NO_OF_ADAPTER_PER_DEVICE]; + struct i2c_algorithm *i2c_algo; - int (*power_ctrl) (struct dvb_usb_device *, int); + unsigned int num_adapters; + struct dvb_usb_adapter_properties adapter[MAX_NO_OF_ADAPTER_PER_DEVICE]; + int (*get_adapter_count) (struct dvb_usb_device *); + int (*power_ctrl) (struct dvb_usb_device *, int); int (*read_config) (struct dvb_usb_device *d); int (*read_mac_address) (struct dvb_usb_adapter *, u8 []); int (*frontend_attach) (struct dvb_usb_adapter *); @@ -221,18 +221,13 @@ struct dvb_usb_device_properties { int (*fe_ioctl_override) (struct dvb_frontend *, unsigned int, void *, unsigned int); int (*init) (struct dvb_usb_device *); - void (*disconnect) (struct dvb_usb_device *); + void (*exit) (struct dvb_usb_device *); int (*get_rc_config) (struct dvb_usb_device *, struct dvb_usb_rc *); #define DVB_USB_FE_TS_TYPE_188 0 #define DVB_USB_FE_TS_TYPE_204 1 #define DVB_USB_FE_TS_TYPE_RAW 2 int (*get_stream_config) (struct dvb_frontend *, u8 *, struct usb_data_stream_properties *); - - struct i2c_algorithm *i2c_algo; - - int generic_bulk_ctrl_endpoint; - int generic_bulk_ctrl_endpoint_response; }; /** @@ -247,12 +242,12 @@ struct dvb_usb_device_properties { */ #define MAX_NO_URBS_FOR_DATA_STREAM 10 struct usb_data_stream { - struct usb_device *udev; - struct usb_data_stream_properties props; + struct usb_device *udev; + struct usb_data_stream_properties props; #define USB_STATE_INIT 0x00 #define USB_STATE_URB_BUF 0x01 - int state; + u8 state; void (*complete) (struct usb_data_stream *, u8 *, size_t); @@ -297,26 +292,23 @@ struct usb_data_stream { struct dvb_usb_adapter { const struct dvb_usb_adapter_properties *props; struct usb_data_stream stream; - u8 id; + u8 id; u8 ts_type; - int pid_filtering; - int feed_count; - int max_feed_count; - - /* sync frontend and streaming as those are different tasks */ - struct mutex sync_mutex; + bool pid_filtering; + u8 feed_count; + u8 max_feed_count; + s8 active_fe; /* dvb */ struct dvb_adapter dvb_adap; struct dmxdev dmxdev; struct dvb_demux demux; struct dvb_net dvb_net; + struct mutex sync_mutex; struct dvb_frontend *fe[MAX_NO_OF_FE_PER_ADAP]; int (*fe_init[MAX_NO_OF_FE_PER_ADAP]) (struct dvb_frontend *); int (*fe_sleep[MAX_NO_OF_FE_PER_ADAP]) (struct dvb_frontend *); - - int active_fe; }; /** @@ -346,11 +338,12 @@ struct dvb_usb_device { const struct dvb_usb_device_properties *props; const char *name; const char *rc_map; - struct dvb_usb_rc rc; + struct usb_device *udev; + struct usb_interface *intf; + struct dvb_usb_rc rc; struct work_struct probe_work; pid_t work_pid; - struct usb_interface *intf; int powered; /* locking */ diff --git a/drivers/media/dvb/dvb-usb/dvb_usb_core.c b/drivers/media/dvb/dvb-usb/dvb_usb_core.c index f3e1ec2..42473e1 100644 --- a/drivers/media/dvb/dvb-usb/dvb_usb_core.c +++ b/drivers/media/dvb/dvb-usb/dvb_usb_core.c @@ -12,22 +12,22 @@ * see Documentation/dvb/README.dvb-usb for more information */ #include "dvb_usb_common.h" -#include <linux/usb/input.h> int dvb_usbv2_disable_rc_polling; module_param_named(disable_rc_polling, dvb_usbv2_disable_rc_polling, int, 0644); MODULE_PARM_DESC(disable_rc_polling, - "disable remote control polling (default: 0)."); + "disable remote control polling (default: 0)"); static int dvb_usb_force_pid_filter_usage; module_param_named(force_pid_filter_usage, dvb_usb_force_pid_filter_usage, int, 0444); -MODULE_PARM_DESC(force_pid_filter_usage, "force all dvb-usb-devices to use a" \ - " PID filter, if any (default: 0)."); +MODULE_PARM_DESC(force_pid_filter_usage, "force all DVB USB devices to use a " \ + "PID filter, if any (default: 0)"); static int dvb_usbv2_download_firmware(struct dvb_usb_device *d, const char *name) { int ret; const struct firmware *fw; + pr_debug("%s:\n", __func__); if (!d->props->download_firmware) { ret = -EINVAL; @@ -36,10 +36,10 @@ static int dvb_usbv2_download_firmware(struct dvb_usb_device *d, const char *nam ret = request_firmware(&fw, name, &d->udev->dev); if (ret < 0) { - pr_err("%s: did not find the firmware file. (%s) " \ + pr_err("%s: Did not find the firmware file '%s'. " \ "Please see linux/Documentation/dvb/ for " \ - "more details on firmware-problems. (%d)\n", - KBUILD_MODNAME, name, ret); + "more details on firmware-problems. Status " \ + "%d\n", KBUILD_MODNAME, name, ret); goto err; } @@ -47,9 +47,7 @@ static int dvb_usbv2_download_firmware(struct dvb_usb_device *d, const char *nam name); ret = d->props->download_firmware(d, fw); - release_firmware(fw); - if (ret < 0) goto err; @@ -62,7 +60,6 @@ err: static int dvb_usbv2_i2c_init(struct dvb_usb_device *d) { int ret; - pr_debug("%s:\n", __func__); if (!d->props->i2c_algo) @@ -103,29 +100,27 @@ static void dvb_usb_read_remote_control(struct work_struct *work) struct dvb_usb_device, rc_query_work.work); int ret; - /* TODO: need a lock here. We can simply skip checking for the remote - control if we're busy. */ - - /* when the parameter has been set to 1 via sysfs while the - * driver was running, or when bulk mode is enabled after IR init + /* + * When the parameter has been set to 1 via sysfs while the + * driver was running, or when bulk mode is enabled after IR init. */ if (dvb_usbv2_disable_rc_polling || d->rc.bulk_mode) return; ret = d->rc.query(d); - if (ret < 0) - pr_err("%s: error %d while querying for an remote control " \ - "event\n", KBUILD_MODNAME, ret); + if (ret < 0) { + pr_err("%s: rc.query() failed=%d\n", KBUILD_MODNAME, ret); + return; /* stop polling */ + } schedule_delayed_work(&d->rc_query_work, - msecs_to_jiffies(d->rc.interval)); + msecs_to_jiffies(d->rc.interval)); } static int dvb_usbv2_remote_init(struct dvb_usb_device *d) { int ret; struct rc_dev *dev; - pr_debug("%s:\n", __func__); if (dvb_usbv2_disable_rc_polling || !d->props->get_rc_config) @@ -142,7 +137,7 @@ static int dvb_usbv2_remote_init(struct dvb_usb_device *d) } dev->dev.parent = &d->udev->dev; - dev->input_name = "IR-receiver inside an USB DVB receiver"; + dev->input_name = d->name; usb_make_path(d->udev, d->rc_phys, sizeof(d->rc_phys)); strlcat(d->rc_phys, "/ir0", sizeof(d->rc_phys)); dev->input_phys = d->rc_phys; @@ -153,13 +148,10 @@ static int dvb_usbv2_remote_init(struct dvb_usb_device *d) dev->allowed_protos = d->rc.allowed_protos; dev->change_protocol = d->rc.change_protocol; dev->priv = d; - /* select used keymap */ if (d->rc.map_name) dev->map_name = d->rc.map_name; - else if (d->rc_map) - dev->map_name = d->rc_map; else - dev->map_name = RC_MAP_EMPTY; /* keep rc enabled */ + dev->map_name = d->rc_map; ret = rc_register_device(dev); if (ret < 0) { @@ -235,9 +227,8 @@ int dvb_usbv2_adapter_stream_init(struct dvb_usb_adapter *adap) int dvb_usbv2_adapter_stream_exit(struct dvb_usb_adapter *adap) { pr_debug("%s: adap=%d\n", __func__, adap->id); - usb_urb_exitv2(&adap->stream); - return 0; + return usb_urb_exitv2(&adap->stream); } static inline int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, @@ -369,7 +360,7 @@ int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap) if (ret < 0) { pr_debug("%s: dvb_register_adapter() failed=%d\n", __func__, ret); - goto err; + goto err_dvb_register_adapter; } adap->dvb_adap.priv = adap; @@ -378,7 +369,7 @@ int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap) ret = d->props->read_mac_address(adap, adap->dvb_adap.proposed_mac); if (ret < 0) - goto err_dmx; + goto err_dvb_dmx_init; pr_info("%s: MAC address: %pM\n", KBUILD_MODNAME, adap->dvb_adap.proposed_mac); @@ -387,8 +378,7 @@ int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap) adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING; adap->demux.priv = adap; adap->demux.filternum = 0; - if (adap->demux.filternum < adap->max_feed_count) - adap->demux.filternum = adap->max_feed_count; + adap->demux.filternum = adap->max_feed_count; adap->demux.feednum = adap->demux.filternum; adap->demux.start_feed = dvb_usb_start_feed; adap->demux.stop_feed = dvb_usb_stop_feed; @@ -396,7 +386,7 @@ int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap) ret = dvb_dmx_init(&adap->demux); if (ret < 0) { pr_err("%s: dvb_dmx_init() failed=%d\n", KBUILD_MODNAME, ret); - goto err_dmx; + goto err_dvb_dmx_init; } adap->dmxdev.filternum = adap->demux.filternum; @@ -406,25 +396,25 @@ int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap) if (ret < 0) { pr_err("%s: dvb_dmxdev_init() failed=%d\n", KBUILD_MODNAME, ret); - goto err_dmx_dev; + goto err_dvb_dmxdev_init; } ret = dvb_net_init(&adap->dvb_adap, &adap->dvb_net, &adap->demux.dmx); if (ret < 0) { pr_err("%s: dvb_net_init() failed=%d\n", KBUILD_MODNAME, ret); - goto err_net_init; + goto err_dvb_net_init; } mutex_init(&adap->sync_mutex); return 0; -err_net_init: +err_dvb_net_init: dvb_dmxdev_release(&adap->dmxdev); -err_dmx_dev: +err_dvb_dmxdev_init: dvb_dmx_release(&adap->demux); -err_dmx: +err_dvb_dmx_init: dvb_unregister_adapter(&adap->dvb_adap); -err: +err_dvb_register_adapter: adap->dvb_adap.priv = NULL; return ret; } @@ -468,7 +458,7 @@ err: return ret; } -static int dvb_usb_fe_wakeup(struct dvb_frontend *fe) +static int dvb_usb_fe_init(struct dvb_frontend *fe) { int ret; struct dvb_usb_adapter *adap = fe->dvb->priv; @@ -560,10 +550,9 @@ int dvb_usbv2_adapter_frontend_init(struct dvb_usb_adapter *adap) for (i = 0; i < MAX_NO_OF_FE_PER_ADAP && adap->fe[i]; i++) { adap->fe[i]->id = i; - /* re-assign sleep and wakeup functions */ adap->fe_init[i] = adap->fe[i]->ops.init; - adap->fe[i]->ops.init = dvb_usb_fe_wakeup; + adap->fe[i]->ops.init = dvb_usb_fe_init; adap->fe_sleep[i] = adap->fe[i]->ops.sleep; adap->fe[i]->ops.sleep = dvb_usb_fe_sleep; @@ -699,7 +688,6 @@ err: static int dvb_usbv2_adapter_exit(struct dvb_usb_device *d) { int i; - pr_debug("%s:\n", __func__); for (i = MAX_NO_OF_ADAPTER_PER_DEVICE - 1; i >= 0; i--) { @@ -727,7 +715,8 @@ static int dvb_usbv2_exit(struct dvb_usb_device *d) static int dvb_usbv2_init(struct dvb_usb_device *d) { - int ret = 0; + int ret; + pr_debug("%s:\n", __func__); dvb_usbv2_device_power_ctrl(d, 1); @@ -770,7 +759,6 @@ err: * is this routine. Due to that we delay actual operation using workqueue * and return always success here. */ - static void dvb_usbv2_init_work(struct work_struct *work) { int ret; @@ -778,7 +766,6 @@ static void dvb_usbv2_init_work(struct work_struct *work) container_of(work, struct dvb_usb_device, probe_work); d->work_pid = current->pid; - pr_debug("%s: work_pid=%d\n", __func__, d->work_pid); if (d->props->size_of_priv) { @@ -817,7 +804,8 @@ static void dvb_usbv2_init_work(struct work_struct *work) */ return; } else { - /* Unexpected error. We must unregister driver + /* + * Unexpected error. We must unregister driver * manually from the device, because device is * already register by returning from probe() * with success. usb_driver_release_interface() @@ -844,7 +832,6 @@ static void dvb_usbv2_init_work(struct work_struct *work) err_usb_driver_release_interface: pr_info("%s: '%s' error while loading driver (%d)\n", KBUILD_MODNAME, d->name, ret); - /* it finally calls disconnect() which frees mem */ usb_driver_release_interface(to_usb_driver(d->intf->dev.driver), d->intf); pr_debug("%s: failed=%d\n", __func__, ret); @@ -909,8 +896,7 @@ EXPORT_SYMBOL(dvb_usbv2_probe); void dvb_usbv2_disconnect(struct usb_interface *intf) { struct dvb_usb_device *d = usb_get_intfdata(intf); - const char *name; - + const char *name = d->name; pr_debug("%s: pid=%d work_pid=%d\n", __func__, current->pid, d->work_pid); @@ -918,10 +904,9 @@ void dvb_usbv2_disconnect(struct usb_interface *intf) if (d->work_pid != current->pid) cancel_work_sync(&d->probe_work); - if (d->props->disconnect) - d->props->disconnect(d); + if (d->props->exit) + d->props->exit(d); - name = d->name; dvb_usbv2_exit(d); pr_info("%s: '%s' successfully deinitialized and disconnected\n", @@ -933,7 +918,6 @@ int dvb_usbv2_suspend(struct usb_interface *intf, pm_message_t msg) { struct dvb_usb_device *d = usb_get_intfdata(intf); int i; - pr_debug("%s:\n", __func__); /* stop remote controller poll */ @@ -955,7 +939,6 @@ int dvb_usbv2_resume(struct usb_interface *intf) { struct dvb_usb_device *d = usb_get_intfdata(intf); int i; - pr_debug("%s:\n", __func__); /* start streaming */ diff --git a/drivers/media/dvb/dvb-usb/usb_urb.c b/drivers/media/dvb/dvb-usb/usb_urb.c index 32e80be..d860dac 100644 --- a/drivers/media/dvb/dvb-usb/usb_urb.c +++ b/drivers/media/dvb/dvb-usb/usb_urb.c @@ -38,7 +38,7 @@ static void usb_urb_complete(struct urb *urb) case -ESHUTDOWN: return; default: /* error */ - pr_debug("%s: URB completition failed=%d\n", __func__, + pr_debug("%s: urb completition failed=%d\n", __func__, urb->status); break; } @@ -76,7 +76,7 @@ int usb_urb_killv2(struct usb_data_stream *stream) { int i; for (i = 0; i < stream->urbs_submitted; i++) { - pr_debug("%s: kill URB=%d\n", __func__, i); + pr_debug("%s: kill urb=%d\n", __func__, i); /* stop the URB */ usb_kill_urb(stream->urb_list[i]); } @@ -96,10 +96,10 @@ int usb_urb_submitv2(struct usb_data_stream *stream, } for (i = 0; i < stream->urbs_initialized; i++) { - pr_debug("%s: submit URB=%d\n", __func__, i); + pr_debug("%s: submit urb=%d\n", __func__, i); ret = usb_submit_urb(stream->urb_list[i], GFP_ATOMIC); if (ret) { - pr_err("%s: could not submit URB no. %d - get them " \ + pr_err("%s: could not submit urb no. %d - get them " \ "all back\n", KBUILD_MODNAME, i); usb_urb_killv2(stream); return ret; @@ -115,9 +115,9 @@ int usb_urb_free_urbs(struct usb_data_stream *stream) usb_urb_killv2(stream); - for (i = 0; i < stream->urbs_initialized; i++) { - if (stream->urb_list[i] != NULL) { - pr_debug("%s: free URB=%d\n", __func__, i); + for (i = stream->urbs_initialized - 1; i >= 0; i--) { + if (stream->urb_list[i]) { + pr_debug("%s: free urb=%d\n", __func__, i); /* free the URBs */ usb_free_urb(stream->urb_list[i]); } @@ -133,7 +133,7 @@ static int usb_urb_alloc_bulk_urbs(struct usb_data_stream *stream) /* allocate the URBs */ for (i = 0; i < stream->props.count; i++) { - pr_debug("%s: alloc URB=%d\n", __func__, i); + pr_debug("%s: alloc urb=%d\n", __func__, i); stream->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC); if (!stream->urb_list[i]) { pr_debug("%s: failed\n", __func__); @@ -164,7 +164,7 @@ static int usb_urb_alloc_isoc_urbs(struct usb_data_stream *stream) for (i = 0; i < stream->props.count; i++) { struct urb *urb; int frame_offset = 0; - pr_debug("%s: alloc URB=%d\n", __func__, i); + pr_debug("%s: alloc urb=%d\n", __func__, i); stream->urb_list[i] = usb_alloc_urb( stream->props.u.isoc.framesperurb, GFP_ATOMIC); if (!stream->urb_list[i]) { @@ -229,17 +229,17 @@ int usb_alloc_stream_buffers(struct usb_data_stream *stream, int num, __func__, num * size); for (stream->buf_num = 0; stream->buf_num < num; stream->buf_num++) { - pr_debug("%s: alloc buf=%d\n", __func__, stream->buf_num); stream->buf_list[stream->buf_num] = usb_alloc_coherent( stream->udev, size, GFP_ATOMIC, &stream->dma_addr[stream->buf_num]); - if (stream->buf_list[stream->buf_num] == NULL) { - pr_debug("%s: failed\n", __func__); + if (!stream->buf_list[stream->buf_num]) { + pr_debug("%s: alloc buf=%d failed\n", __func__, + stream->buf_num); usb_free_stream_buffers(stream); return -ENOMEM; } - pr_debug("%s: buf %d: %p (dma %llu)\n", __func__, + pr_debug("%s: alloc buf=%d %p (dma %llu)\n", __func__, stream->buf_num, stream->buf_list[stream->buf_num], (long long)stream->dma_addr[stream->buf_num]); @@ -255,7 +255,7 @@ int usb_urb_reconfig(struct usb_data_stream *stream, { int buf_size; - if (props == NULL) + if (!props) return 0; /* check allocated buffers are large enough for the request */ @@ -293,7 +293,7 @@ int usb_urb_reconfig(struct usb_data_stream *stream, return 0; } - pr_debug("%s: re-alloc URBs\n", __func__); + pr_debug("%s: re-alloc urbs\n", __func__); usb_urb_free_urbs(stream); memcpy(&stream->props, props, sizeof(*props)); @@ -310,7 +310,7 @@ int usb_urb_initv2(struct usb_data_stream *stream, { int ret; - if (stream == NULL || props == NULL) + if (!stream || !props) return -EINVAL; memcpy(&stream->props, props, sizeof(*props)); @@ -318,7 +318,7 @@ int usb_urb_initv2(struct usb_data_stream *stream, usb_clear_halt(stream->udev, usb_rcvbulkpipe(stream->udev, stream->props.endpoint)); - if (stream->complete == NULL) { + if (!stream->complete) { pr_err("%s: there is no data callback - this doesn't make " \ "sense\n", KBUILD_MODNAME); return -EINVAL; @@ -341,7 +341,7 @@ int usb_urb_initv2(struct usb_data_stream *stream, return usb_urb_alloc_isoc_urbs(stream); default: - pr_err("%s: unknown URB-type for data transfer\n", + pr_err("%s: unknown urb-type for data transfer\n", KBUILD_MODNAME); return -EINVAL; } |