linux-kernel - [PATCH] mmc_block: handle error from mmc_register

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20080913100206.GA3746@localhost.localdomain>
Date:	Sat, 13 Sep 2008 19:02:07 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Pierre Ossman <drzeus-mmc@...eus.cx>
Subject: [PATCH] mmc_block: handle error from mmc_register_driver()

Check error from mmc_register_driver() and properly unwind
block device registration.

Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>
Cc: Pierre Ossman <drzeus-mmc@...eus.cx>
---
 drivers/mmc/card/block.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

Index: 2.6-git/drivers/mmc/card/block.c
===================================================================
--- 2.6-git.orig/drivers/mmc/card/block.c
+++ 2.6-git/drivers/mmc/card/block.c
@@ -615,14 +615,19 @@ static struct mmc_driver mmc_driver = {
 
 static int __init mmc_blk_init(void)
 {
-	int res = -ENOMEM;
+	int res;
 
 	res = register_blkdev(MMC_BLOCK_MAJOR, "mmc");
 	if (res)
 		goto out;
 
-	return mmc_register_driver(&mmc_driver);
+	res = mmc_register_driver(&mmc_driver);
+	if (res)
+		goto out2;
 
+	return 0;
+ out2:
+	unregister_blkdev(MMC_BLOCK_MAJOR, "mmc");
  out:
 	return res;
 }
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/