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Message-ID: <20100512212026.GA5513@coldcone> Date: Thu, 13 May 2010 01:20:27 +0400 From: "Denis Kirjanov <kirjanov@...il.com" <kirjanov@...il.com> To: joern@...fs.org Cc: linux-kernel@...r.kernel.org Subject: [PATCH 2/2] lib/btree: Fix possible NULL pointer dereference mempool_alloc can return null in atomic case. Signed-off-by: Denis Kirjanov <kirjanov@...il.com> --- diff --git a/lib/btree.c b/lib/btree.c index 41859a8..542c904 100644 --- a/lib/btree.c +++ b/lib/btree.c @@ -95,7 +94,8 @@ static unsigned long *btree_node_alloc(struct btree_head *head, gfp_t gfp) unsigned long *node; node = mempool_alloc(head->mempool, gfp); - memset(node, 0, NODESIZE); + if (likely(node)) + memset(node, 0, NODESIZE); return node; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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