This is a note to let you know that I've just added the patch titled
dm cache: fix error return code in cache_create
to the 3.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dm-cache-fix-error-return-code-in-cache_create.patch
and it can be found in the queue-3.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From fa4d683af3693863bec761e2761a07e4c1351f86 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
Date: Fri, 10 May 2013 14:37:14 +0100
Subject: dm cache: fix error return code in cache_create
From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
commit fa4d683af3693863bec761e2761a07e4c1351f86 upstream.
Return -ENOMEM if memory allocation fails in cache_create
instead of 0 (to avoid NULL pointer dereference).
Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
Signed-off-by: Alasdair G Kergon <agk@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/dm-cache-target.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -1971,6 +1971,7 @@ static int cache_create(struct cache_arg
atomic_set(&cache->nr_migrations, 0);
init_waitqueue_head(&cache->migration_wait);
+ r = -ENOMEM;
cache->nr_dirty = 0;
cache->dirty_bitset = alloc_bitset(from_cblock(cache->cache_size));
if (!cache->dirty_bitset) {
Patches currently in stable-queue which might be from yongjun_wei@xxxxxxxxxxxxxxxxx are
queue-3.9/dm-cache-fix-error-return-code-in-cache_create.patch
queue-3.9/dm-snapshot-fix-error-return-code-in-snapshot_ctr.patch
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