From 94eaa1bd7ca67e8f57919da96cbb41c215ef20cb Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Wed, 7 May 2008 22:32:28 +0800 Subject: [PATCH] [HIFN]: Handle ablkcipher_walk errors ablkcipher_walk may return a negative error value, handle this properly instead of treating it as a huge number of scatter-gather elements. Signed-off-by: Patrick McHardy Acked-by: Evgeniy Polyakov Signed-off-by: Herbert Xu --- drivers/crypto/hifn_795x.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c index cce6e6f1ba..4e89cd8f66 100644 --- a/drivers/crypto/hifn_795x.c +++ b/drivers/crypto/hifn_795x.c @@ -1602,7 +1602,10 @@ static int hifn_setup_session(struct ablkcipher_request *req) idx = 0; sg_num = ablkcipher_walk(req, &ctx->walk); - + if (sg_num < 0) { + err = sg_num; + goto err_out_exit; + } atomic_set(&ctx->sg_num, sg_num); spin_lock_irqsave(&dev->lock, flags); -- 2.39.5