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[3.11,075/198] pNFS: Handle allocation errors correctly in filelayout_alloc_layout_hdr()

Message ID 1404379241-8590-76-git-send-email-luis.henriques@canonical.com
State New
Headers show

Commit Message

Luis Henriques July 3, 2014, 9:18 a.m. UTC 
3.11.10.13 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Trond Myklebust <trond.myklebust@primarydata.com>

commit 6df200f5d5191bdde4d2e408215383890f956781 upstream.

Return the NULL pointer when the allocation fails.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 fs/nfs/nfs4filelayout.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index 17ed87ef9de8..76a988f31727 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -1301,7 +1301,7 @@  filelayout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags)
 	struct nfs4_filelayout *flo;
 
 	flo = kzalloc(sizeof(*flo), gfp_flags);
-	return &flo->generic_hdr;
+	return flo != NULL ? &flo->generic_hdr : NULL;
 }
 
 static void