From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Mon, 25 Jun 2007 15:39:33 +0000 (+0900)
Subject: [SCSI] sr: fix error handling in module_init
X-Git-Tag: firefly_0821_release~28249^2~22
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=da3962fe63eae4f490356cb54e4700eac752541b;p=firefly-linux-kernel-4.4.55.git

[SCSI] sr: fix error handling in module_init

Sweep registered blkdev when scsi_register_driver has failed.

Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---

diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index f9a52af7f5b4..5143c8990845 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -885,7 +885,11 @@ static int __init init_sr(void)
 	rc = register_blkdev(SCSI_CDROM_MAJOR, "sr");
 	if (rc)
 		return rc;
-	return scsi_register_driver(&sr_template.gendrv);
+	rc = scsi_register_driver(&sr_template.gendrv);
+	if (rc)
+		unregister_blkdev(SCSI_CDROM_MAJOR, "sr");
+
+	return rc;
 }
 
 static void __exit exit_sr(void)