From: Will Thomas <will.thomas@imgtec.com>
To: <herbert@gondor.apana.org.au>
Cc: <linux-crypto@vger.kernel.org>, Will Thomas <will.thomas@imgtec.com>
Subject: [PATCH v2 1/7] crypto: img-hash - Fix null pointer exception
Date: Fri, 5 Aug 2016 14:00:14 +0100 [thread overview]
Message-ID: <1470402020-10774-2-git-send-email-will.thomas@imgtec.com> (raw)
In-Reply-To: <1470402020-10774-1-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..e5c941b 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 (!hdev->req || !ctx->sg)
return;
addr = sg_virt(ctx->sg);
--
2.1.4
next prev parent reply other threads:[~2016-08-05 13:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-05 13:00 [PATCH v2 0/7] crypto: img-hash - fixes and interface changes Will Thomas
2016-08-05 13:00 ` Will Thomas [this message]
2016-08-05 13:00 ` [PATCH v2 2/7] crypto: img-hash - Fix hash request context Will Thomas
2016-08-05 13:00 ` [PATCH v2 3/7] crypto: img-hash - Reconfigure DMA Burst length Will Thomas
2016-08-05 13:00 ` [PATCH v2 4/7] crypto: img-hash - Add suspend resume hooks for img hash Will Thomas
2016-08-05 13:00 ` [PATCH v2 5/7] crypto: img-hash - Add support for export and import Will Thomas
2016-08-05 13:00 ` [PATCH v2 6/7] crypto: img-hash - log a successful probe Will Thomas
2016-08-05 13:00 ` [PATCH v2 7/7] crypto: img-hash - Fix set_reqsize call Will Thomas
2016-08-09 11:02 ` [PATCH v2 0/7] crypto: img-hash - fixes and interface changes Herbert Xu
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