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Commit da191c28 authored by Dan Carpenter's avatar Dan Carpenter Committed by Greg Kroah-Hartman
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snsc: restore IRQs on error path in scdrv_write() 



This bug is as old as git.  We need to be calling spin_unlock_irqrestore()
instead of regular spin_unlock() here.

Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent dd5c472a

drivers/char/snsc.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -285,7 +285,7 @@ scdrv_write(struct file *file, const char __user *buf, 
		DECLARE_WAITQUEUE(wait, current);

		DECLARE_WAITQUEUE(wait, current);





		if (file->f_flags & O_NONBLOCK) {

		if (file->f_flags & O_NONBLOCK) {

			spin_unlock(&sd->sd_wlock);

			spin_unlock_irqrestore(&sd->sd_wlock, flags);

			up(&sd->sd_wbs);

			up(&sd->sd_wbs);

			return -EAGAIN;

			return -EAGAIN;

		}

		}