From mboxrd@z Thu Jan 1 00:00:00 1970 From: Will Thomas Subject: [PATCH 1/6] crypto: img-hash - Fix null pointer exception Date: Mon, 11 Jul 2016 10:33:31 +0100 Message-ID: <1468229616-3888-2-git-send-email-will.thomas@imgtec.com> References: <1468229616-3888-1-git-send-email-will.thomas@imgtec.com> Mime-Version: 1.0 Content-Type: text/plain Cc: Will Thomas To: Return-path: Received: from mailapp01.imgtec.com ([195.59.15.196]:32634 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752511AbcGKJeW (ORCPT ); Mon, 11 Jul 2016 05:34:22 -0400 Received: from HHMAIL01.hh.imgtec.org (unknown [10.100.10.19]) by Forcepoint Email with ESMTPS id 653EEE89C5F27 for ; Mon, 11 Jul 2016 10:34:08 +0100 (IST) In-Reply-To: <1468229616-3888-1-git-send-email-will.thomas@imgtec.com> Sender: linux-crypto-owner@vger.kernel.org List-ID: Sporadic null pointer exceptions came from here. Fix them. Signed-off-by: Will Thomas Reviewed-by: James Hartley --- drivers/crypto/img-hash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/img-hash.c b/drivers/crypto/img-hash.c index 68e8aa9..a5f270b 100644 --- a/drivers/crypto/img-hash.c +++ b/drivers/crypto/img-hash.c @@ -361,7 +361,7 @@ static void img_hash_dma_task(unsigned long d) size_t nbytes, bleft, wsend, len, tbc; struct scatterlist tsg; - if (!ctx->sg) + if (!ctx || !ctx->sg) return; addr = sg_virt(ctx->sg); -- 2.1.4