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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-03-25 13:09:54 -0400
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-04-05 03:40:31 -0400
commit54acbaaa523ca0bd284a18f67ad213c379679e86 (patch)
treec6ed0d74270ef84bc605d71feaa09b0511ccece6 /fs/ubifs/lpt.c
parent8b229c76765816796eec7ccd428f03bd8de8b525 (diff)
UBIFS: fix oops on error path in read_pnode
Thanks to coverity which spotted that UBIFS will oops if 'kmalloc()' in 'read_pnode()' fails and we dereference a NULL 'pnode' pointer when we 'goto out'. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Cc: stable@kernel.org
Diffstat (limited to 'fs/ubifs/lpt.c')
-rw-r--r--fs/ubifs/lpt.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/ubifs/lpt.c b/fs/ubifs/lpt.c
index 72775d35b99e..ef5155e109a2 100644
--- a/fs/ubifs/lpt.c
+++ b/fs/ubifs/lpt.c
@@ -1270,10 +1270,9 @@ static int read_pnode(struct ubifs_info *c, struct ubifs_nnode *parent, int iip)
1270 lnum = branch->lnum; 1270 lnum = branch->lnum;
1271 offs = branch->offs; 1271 offs = branch->offs;
1272 pnode = kzalloc(sizeof(struct ubifs_pnode), GFP_NOFS); 1272 pnode = kzalloc(sizeof(struct ubifs_pnode), GFP_NOFS);
1273 if (!pnode) { 1273 if (!pnode)
1274 err = -ENOMEM; 1274 return -ENOMEM;
1275 goto out; 1275
1276 }
1277 if (lnum == 0) { 1276 if (lnum == 0) {
1278 /* 1277 /*
1279 * This pnode was not written which just means that the LEB 1278 * This pnode was not written which just means that the LEB