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synclink: add mutex_unlock() on error path

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There is a path which still holds its mutex here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Dan Carpenter 2010-08-11 20:01:46 +02:00 committed by Greg Kroah-Hartman
parent 49bf7eaffc
commit 80d04f22b0
1 changed files with 3 additions and 1 deletions
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4
drivers/char/synclink_gt.c
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@ -691,8 +691,10 @@ static int open(struct tty_struct *tty, struct file *filp)
if (info->port.count == 1) {
/* 1st open on this device, init hardware */
retval = startup(info);
if (retval < 0)
if (retval < 0) {
mutex_unlock(&info->port.mutex);
goto cleanup;
}
}
mutex_unlock(&info->port.mutex);
retval = block_til_ready(tty, filp, info);