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USB: legousbtower: drop redundant open_count check 

Drop redundant open_count check in release; the open count is used as a
flag and is only set to 0 or 1.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20191105084152.16322-5-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2019-11-05 09:41:42 +01:00 committed by Greg Kroah-Hartman
parent 30da837a49
commit b5a80252e0
1 changed files with 0 additions and 8 deletions
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8
drivers/usb/misc/legousbtower.c
View File

@ -421,13 +421,6 @@ static int tower_release (struct inode *inode, struct file *file)
mutex_lock(&dev->lock); mutex_lock(&dev->lock);
if (dev->open_count != 1) {
dev_dbg(&dev->udev->dev, "%s: device not opened exactly once\n",
__func__);
retval = -ENODEV;
goto unlock_exit;
}
if (dev->disconnected) { if (dev->disconnected) {
/* the device was unplugged before the file was released */ /* the device was unplugged before the file was released */
@ -444,7 +437,6 @@ static int tower_release (struct inode *inode, struct file *file)
tower_abort_transfers (dev); tower_abort_transfers (dev);
dev->open_count = 0; dev->open_count = 0;
unlock_exit:
mutex_unlock(&dev->lock); mutex_unlock(&dev->lock);
exit: exit:
return retval; return retval;