diff options
Diffstat (limited to 'drivers/usb/misc/sisusbvga')
| -rw-r--r-- | drivers/usb/misc/sisusbvga/sisusb.c | 38 | ||||
| -rw-r--r-- | drivers/usb/misc/sisusbvga/sisusb_con.c | 25 | ||||
| -rw-r--r-- | drivers/usb/misc/sisusbvga/sisusb_init.h | 2 |
3 files changed, 7 insertions, 58 deletions
diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index 6f8b134..9f37ba4 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -72,8 +72,6 @@ MODULE_PARM_DESC(last, "Number of last console to take over (1 - MAX_NR_CONSOLES static struct usb_driver sisusb_driver; -DEFINE_MUTEX(disconnect_mutex); - static void sisusb_free_buffers(struct sisusb_usb_data *sisusb) { @@ -2511,31 +2509,24 @@ sisusb_open(struct inode *inode, struct file *file) struct usb_interface *interface; int subminor = iminor(inode); - mutex_lock(&disconnect_mutex); - if (!(interface = usb_find_interface(&sisusb_driver, subminor))) { printk(KERN_ERR "sisusb[%d]: Failed to find interface\n", subminor); - mutex_unlock(&disconnect_mutex); return -ENODEV; } - if (!(sisusb = usb_get_intfdata(interface))) { - mutex_unlock(&disconnect_mutex); + if (!(sisusb = usb_get_intfdata(interface))) return -ENODEV; - } mutex_lock(&sisusb->lock); if (!sisusb->present || !sisusb->ready) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); return -ENODEV; } if (sisusb->isopen) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); return -EBUSY; } @@ -2543,7 +2534,6 @@ sisusb_open(struct inode *inode, struct file *file) if (sisusb->sisusb_dev->speed == USB_SPEED_HIGH) { if (sisusb_init_gfxdevice(sisusb, 0)) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); printk(KERN_ERR "sisusbvga[%d]: Failed to initialize " "device\n", @@ -2552,7 +2542,6 @@ sisusb_open(struct inode *inode, struct file *file) } } else { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); printk(KERN_ERR "sisusbvga[%d]: Device not attached to " "USB 2.0 hub\n", @@ -2570,8 +2559,6 @@ sisusb_open(struct inode *inode, struct file *file) mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); - return 0; } @@ -2601,12 +2588,8 @@ sisusb_release(struct inode *inode, struct file *file) struct sisusb_usb_data *sisusb; int myminor; - mutex_lock(&disconnect_mutex); - - if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) { - mutex_unlock(&disconnect_mutex); + if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) return -ENODEV; - } mutex_lock(&sisusb->lock); @@ -2626,8 +2609,6 @@ sisusb_release(struct inode *inode, struct file *file) /* decrement the usage count on our device */ kref_put(&sisusb->kref, sisusb_delete); - mutex_unlock(&disconnect_mutex); - return 0; } @@ -3383,12 +3364,9 @@ static void sisusb_disconnect(struct usb_interface *intf) sisusb_console_exit(sisusb); #endif - /* The above code doesn't need the disconnect - * semaphore to be down; its meaning is to - * protect all other routines from the disconnect - * case, not the other way round. - */ - mutex_lock(&disconnect_mutex); + minor = sisusb->minor; + + usb_deregister_dev(intf, &usb_sisusb_class); mutex_lock(&sisusb->lock); @@ -3396,12 +3374,8 @@ static void sisusb_disconnect(struct usb_interface *intf) if (!sisusb_wait_all_out_complete(sisusb)) sisusb_kill_all_busy(sisusb); - minor = sisusb->minor; - usb_set_intfdata(intf, NULL); - usb_deregister_dev(intf, &usb_sisusb_class); - #ifdef SISUSB_OLD_CONFIG_COMPAT if (sisusb->ioctl32registered) { int ret; @@ -3426,8 +3400,6 @@ static void sisusb_disconnect(struct usb_interface *intf) /* decrement our usage count */ kref_put(&sisusb->kref, sisusb_delete); - mutex_unlock(&disconnect_mutex); - printk(KERN_INFO "sisusbvga[%d]: Disconnected\n", minor); } diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c index 5947afb..8d0edc8 100644 --- a/drivers/usb/misc/sisusbvga/sisusb_con.c +++ b/drivers/usb/misc/sisusbvga/sisusb_con.c @@ -214,18 +214,13 @@ sisusbcon_init(struct vc_data *c, int init) * are set up/restored. */ - mutex_lock(&disconnect_mutex); - - if (!(sisusb = sisusb_get_sisusb(c->vc_num))) { - mutex_unlock(&disconnect_mutex); + if (!(sisusb = sisusb_get_sisusb(c->vc_num))) return; - } mutex_lock(&sisusb->lock); if (!sisusb_sisusb_valid(sisusb)) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); return; } @@ -264,8 +259,6 @@ sisusbcon_init(struct vc_data *c, int init) mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); - if (init) { c->vc_cols = cols; c->vc_rows = rows; @@ -284,12 +277,8 @@ sisusbcon_deinit(struct vc_data *c) * and others, ie not under our control. */ - mutex_lock(&disconnect_mutex); - - if (!(sisusb = sisusb_get_sisusb(c->vc_num))) { - mutex_unlock(&disconnect_mutex); + if (!(sisusb = sisusb_get_sisusb(c->vc_num))) return; - } mutex_lock(&sisusb->lock); @@ -314,8 +303,6 @@ sisusbcon_deinit(struct vc_data *c) /* decrement the usage count on our sisusb */ kref_put(&sisusb->kref, sisusb_delete); - - mutex_unlock(&disconnect_mutex); } /* interface routine */ @@ -1490,14 +1477,11 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last) { int i, ret, minor = sisusb->minor; - mutex_lock(&disconnect_mutex); - mutex_lock(&sisusb->lock); /* Erm.. that should not happen */ if (sisusb->haveconsole || !sisusb->SiS_Pr) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); return 1; } @@ -1508,14 +1492,12 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last) first > MAX_NR_CONSOLES || last > MAX_NR_CONSOLES) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); return 1; } /* If gfxcore not initialized or no consoles given, quit graciously */ if (!sisusb->gfxinit || first < 1 || last < 1) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); return 0; } @@ -1526,7 +1508,6 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last) /* Set up text mode (and upload default font) */ if (sisusb_reset_text_mode(sisusb, 1)) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); printk(KERN_ERR "sisusbvga[%d]: Failed to set up text mode\n", minor); @@ -1550,7 +1531,6 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last) /* Allocate screen buffer */ if (!(sisusb->scrbuf = (unsigned long)vmalloc(sisusb->scrbuf_size))) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); printk(KERN_ERR "sisusbvga[%d]: Failed to allocate screen buffer\n", minor); @@ -1558,7 +1538,6 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last) } mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); /* Now grab the desired console(s) */ ret = take_over_console(&sisusb_con, first - 1, last - 1, 0); diff --git a/drivers/usb/misc/sisusbvga/sisusb_init.h b/drivers/usb/misc/sisusbvga/sisusb_init.h index f05f832..864bc0e 100644 --- a/drivers/usb/misc/sisusbvga/sisusb_init.h +++ b/drivers/usb/misc/sisusbvga/sisusb_init.h @@ -808,8 +808,6 @@ static const struct SiS_VCLKData SiSUSB_VCLKData[] = { 0x2b,0xc2, 35} /* 0x71 768@576@60 */ }; -extern struct mutex disconnect_mutex; - int SiSUSBSetMode(struct SiS_Private *SiS_Pr, unsigned short ModeNo); int SiSUSBSetVESAMode(struct SiS_Private *SiS_Pr, unsigned short VModeNo); |