From: Kim Phillips <kim.phillips@freescale.com>
Date: Thu, 17 Jul 2008 12:20:06 +0000 (+0800)
Subject: crypto: talitos - Stop leaking memory in error path
X-Git-Tag: v2.6.27-rc1~59^2~1
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fa86a26795b850cdf4e557898457a63e241c1aa1;p=linux-2.6

crypto: talitos - Stop leaking memory in error path

free edescriptor when returning error (such as -EAGAIN).

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Acked-by: Lee Nipper <lee.nipper@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 79fdba2a20..a81265bbb8 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -880,7 +880,7 @@ static int ipsec_esp(struct ipsec_esp_edesc *edesc, struct aead_request *areq,
 	unsigned int cryptlen = areq->cryptlen;
 	unsigned int authsize = ctx->authsize;
 	unsigned int ivsize;
-	int sg_count;
+	int sg_count, ret;
 
 	/* hmac key */
 	map_single_talitos_ptr(dev, &desc->ptr[0], ctx->authkeylen, &ctx->key,
@@ -984,7 +984,12 @@ static int ipsec_esp(struct ipsec_esp_edesc *edesc, struct aead_request *areq,
 	map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv, 0,
 			       DMA_FROM_DEVICE);
 
-	return talitos_submit(dev, desc, callback, areq);
+	ret = talitos_submit(dev, desc, callback, areq);
+	if (ret != -EINPROGRESS) {
+		ipsec_esp_unmap(dev, edesc, areq);
+		kfree(edesc);
+	}
+	return ret;
 }