linux-kernel - [PATCH 2/6] Handle possible bio

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Date:	Tue, 14 Apr 2009 16:36:36 +0530
From:	Nikanth Karthikesan <knikanth@...e.de>
To:	Chris Mason <chris.mason@...cle.com>
Cc:	Jens Axboe <jens.axboe@...cle.com>, linux-kernel@...r.kernel.org,
	linux-btrfs@...r.kernel.org
Subject: [PATCH 2/6] Handle possible bio_alloc failure in btrfs

Handle possible bio_alloc failure in btrfs.

Signed-off-by: Nikanth Karthikesan <knikanth@...e.de>

---

Index: linux-2.6/fs/btrfs/inode.c
===================================================================
--- linux-2.6.orig/fs/btrfs/inode.c
+++ linux-2.6/fs/btrfs/inode.c
@@ -1714,6 +1714,11 @@ static int btrfs_io_failed_hook(struct b
 		return -EIO;
 	}
 	bio = bio_alloc(GFP_NOFS, 1);
+	if (unlikely(!bio)) {
+		kfree(failrec);
+		return -ENOMEM;
+	}
+	
 	bio->bi_private = state;
 	bio->bi_end_io = failed_bio->bi_end_io;
 	bio->bi_sector = failrec->logical >> 9;


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