From: Svetlana Mavrina <another.karnil@gmail.com>
Date: Sun, 12 Jan 2014 11:56:09 +0000 (+0000)
Subject: RDMA/amso1100: Add check if cache memory was allocated before freeing it
X-Git-Tag: v3.14-rc1~103^2~1^5~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d9d5713ca628dc211d8b4a1da5fb9e0cfe592b92;p=pandora-kernel.git

RDMA/amso1100: Add check if cache memory was allocated before freeing it

There is a path in handle_vq() where kmem_cache_free() can be called
with pointer to a local variable.  It can happen if vq_repbuf_alloc()
failed to allocate memory from cache and req is NULL.

The patch adds check if cache memory was allocated before freeing it.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Svetlana Mavrina <another.karnil@gmail.com>
Reviewed-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---

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