From: Will Thomas <will.thomas@imgtec.com>
To: <linux-crypto@vger.kernel.org>
Cc: Will Thomas <will.thomas@imgtec.com>
Subject: [PATCH 1/6] crypto: img-hash - Fix null pointer exception
Date: Mon, 11 Jul 2016 10:33:31 +0100 [thread overview]
Message-ID: <1468229616-3888-2-git-send-email-will.thomas@imgtec.com> (raw)
In-Reply-To: <1468229616-3888-1-git-send-email-will.thomas@imgtec.com>
Sporadic null pointer exceptions came from here. Fix them.
Signed-off-by: Will Thomas <will.thomas@imgtec.com>
Reviewed-by: James Hartley <james.hartley@imgtec.com>
---
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
next prev parent reply other threads:[~2016-07-11 9:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-11 9:33 [PATCH 0/6] crypto: img-hash - fixes and interface changes Will Thomas
2016-07-11 9:33 ` Will Thomas [this message]
2016-07-12 7:41 ` [PATCH 1/6] crypto: img-hash - Fix null pointer exception Herbert Xu
2016-07-11 9:33 ` [PATCH 2/6] crypto: img-hash - Fix hash request context Will Thomas
2016-07-12 7:43 ` Herbert Xu
2016-07-13 14:45 ` Will Thomas
2016-07-11 9:33 ` [PATCH 3/6] crypto: img-hash - Reconfigure DMA Burst length Will Thomas
2016-07-11 9:33 ` [PATCH 4/6] crypto: img-hash - Add suspend resume hooks for img hash Will Thomas
2016-07-11 9:33 ` [PATCH 5/6] crypto: img-hash - Add support for export and import Will Thomas
2016-07-12 7:49 ` Herbert Xu
2016-07-13 14:01 ` Will Thomas
2016-07-18 6:13 ` Herbert Xu
2016-07-11 9:33 ` [PATCH 6/6] crypto: img-hash - log a successful probe Will Thomas
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