diff options
Diffstat (limited to 'drivers/usb/misc')
| -rw-r--r-- | drivers/usb/misc/sisusbvga/sisusb.c | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index 022dc00..306d685 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -2316,10 +2316,12 @@ sisusb_reset_text_mode(struct sisusb_usb_data *sisusb, int init) /* Set mode 0x03 */ SiSUSBSetMode(sisusb->SiS_Pr, 0x03); - if (!(myfont = find_font("VGA8x16"))) + myfont = find_font("VGA8x16"); + if (!myfont) return 1; - if (!(tempbuf = vmalloc(8192))) + tempbuf = vmalloc(8192); + if (!tempbuf) return 1; for (i = 0; i < 256; i++) @@ -2342,7 +2344,8 @@ sisusb_reset_text_mode(struct sisusb_usb_data *sisusb, int init) if (init && !sisusb->scrbuf) { - if ((tempbuf = vmalloc(8192))) { + tempbuf = vmalloc(8192); + if (tempbuf) { i = 4096; tempbufb = (u16 *)tempbuf; @@ -2417,11 +2420,13 @@ sisusb_open(struct inode *inode, struct file *file) struct usb_interface *interface; int subminor = iminor(inode); - if (!(interface = usb_find_interface(&sisusb_driver, subminor))) { + interface = usb_find_interface(&sisusb_driver, subminor); + if (!interface) { return -ENODEV; } - if (!(sisusb = usb_get_intfdata(interface))) { + sisusb = usb_get_intfdata(interface); + if (!sisusb) { return -ENODEV; } @@ -2488,7 +2493,8 @@ sisusb_release(struct inode *inode, struct file *file) { struct sisusb_usb_data *sisusb; - if (!(sisusb = file->private_data)) + sisusb = file->private_data; + if (!sisusb) return -ENODEV; mutex_lock(&sisusb->lock); @@ -2520,7 +2526,8 @@ sisusb_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) u16 buf16; u32 buf32, address; - if (!(sisusb = file->private_data)) + sisusb = file->private_data; + if (!sisusb) return -ENODEV; mutex_lock(&sisusb->lock); @@ -2662,7 +2669,8 @@ sisusb_write(struct file *file, const char __user *buffer, size_t count, u16 buf16; u32 buf32, address; - if (!(sisusb = file->private_data)) + sisusb = file->private_data; + if (!sisusb) return -ENODEV; mutex_lock(&sisusb->lock); @@ -2805,7 +2813,8 @@ sisusb_lseek(struct file *file, loff_t offset, int orig) struct sisusb_usb_data *sisusb; loff_t ret; - if (!(sisusb = file->private_data)) + sisusb = file->private_data; + if (!sisusb) return -ENODEV; mutex_lock(&sisusb->lock); @@ -2970,7 +2979,8 @@ sisusb_ioctl(struct file *file, unsigned int cmd, unsigned long arg) long retval = 0; u32 __user *argp = (u32 __user *)arg; - if (!(sisusb = file->private_data)) + sisusb = file->private_data; + if (!sisusb) return -ENODEV; mutex_lock(&sisusb->lock); @@ -3084,7 +3094,8 @@ static int sisusb_probe(struct usb_interface *intf, dev->devnum); /* Allocate memory for our private */ - if (!(sisusb = kzalloc(sizeof(*sisusb), GFP_KERNEL))) { + sisusb = kzalloc(sizeof(*sisusb), GFP_KERNEL); + if (!sisusb) { dev_err(&dev->dev, "Failed to allocate memory for private data\n"); return -ENOMEM; } @@ -3093,7 +3104,8 @@ static int sisusb_probe(struct usb_interface *intf, mutex_init(&(sisusb->lock)); /* Register device */ - if ((retval = usb_register_dev(intf, &usb_sisusb_class))) { + retval = usb_register_dev(intf, &usb_sisusb_class); + if (retval) { dev_err(&sisusb->sisusb_dev->dev, "Failed to get a minor for device %d\n", dev->devnum); retval = -ENODEV; @@ -3214,7 +3226,8 @@ static void sisusb_disconnect(struct usb_interface *intf) struct sisusb_usb_data *sisusb; /* This should *not* happen */ - if (!(sisusb = usb_get_intfdata(intf))) + sisusb = usb_get_intfdata(intf); + if (!sisusb) return; #ifdef INCL_SISUSB_CON |