From: Al Viro <viro@ftp.linux.org.uk>
Date: Wed, 26 Sep 2007 06:20:44 +0000 (+0200)
Subject: cdrom_open() forgets to unlock on -EROFS failure exits
X-Git-Tag: firefly_0821_release~26425^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ae3ba4fd966e38d8d766d19f7a58b551df8ecc97;p=firefly-linux-kernel-4.4.55.git

cdrom_open() forgets to unlock on -EROFS failure exits

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 67ee3d4b2878..79245714f0a7 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -1032,6 +1032,10 @@ int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip, struct file *fp)
 	check_disk_change(ip->i_bdev);
 	return 0;
 err_release:
+	if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) {
+		cdi->ops->lock_door(cdi, 0);
+		cdinfo(CD_OPEN, "door unlocked.\n");
+	}
 	cdi->ops->release(cdi);
 err:
 	cdi->use_count--;