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
diff --git a/fs/ubifs/lpt.c b/fs/ubifs/lpt.c
index 72775d3..ef5155e 100644
--- a/fs/ubifs/lpt.c
+++ b/fs/ubifs/lpt.c
@@ -1270,10 +1270,9 @@
lnum = branch->lnum;
offs = branch->offs;
pnode = kzalloc(sizeof(struct ubifs_pnode), GFP_NOFS);
- if (!pnode) {
- err = -ENOMEM;
- goto out;
- }
+ if (!pnode)
+ return -ENOMEM;
+
if (lnum == 0) {
/*
* This pnode was not written which just means that the LEB
