From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Tue, 13 Nov 2007 10:48:28 +0000 (-0800)
Subject: Fix crypto_alloc_comp() error checking.
X-Git-Tag: v2.6.22.14~15
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6c7ad737a3134d1b778bf60e7e4b323d662dfadd;p=karo-tx-linux.git

Fix crypto_alloc_comp() error checking.

[IPSEC]: Fix crypto_alloc_comp error checking

[ Upstream commit: 4999f3621f4da622e77931b3d33ada6c7083c705 ]

The function crypto_alloc_comp returns an errno instead of NULL
to indicate error.  So it needs to be tested with IS_ERR.

This is based on a patch by Vicenç Beltran Querol.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index ab86137c71d2..630ebb7c1685 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -17,6 +17,7 @@
 #include <asm/scatterlist.h>
 #include <asm/semaphore.h>
 #include <linux/crypto.h>
+#include <linux/err.h>
 #include <linux/pfkeyv2.h>
 #include <linux/percpu.h>
 #include <linux/smp.h>
@@ -355,7 +356,7 @@ static struct crypto_comp **ipcomp_alloc_tfms(const char *alg_name)
 	for_each_possible_cpu(cpu) {
 		struct crypto_comp *tfm = crypto_alloc_comp(alg_name, 0,
 							    CRYPTO_ALG_ASYNC);
-		if (!tfm)
+		if (IS_ERR(tfm))
 			goto error;
 		*per_cpu_ptr(tfms, cpu) = tfm;
 	}
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 1ee50b5782e1..3680f643f2d9 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -37,6 +37,7 @@
 #include <asm/scatterlist.h>
 #include <asm/semaphore.h>
 #include <linux/crypto.h>
+#include <linux/err.h>
 #include <linux/pfkeyv2.h>
 #include <linux/random.h>
 #include <linux/percpu.h>
@@ -366,7 +367,7 @@ static struct crypto_comp **ipcomp6_alloc_tfms(const char *alg_name)
 	for_each_possible_cpu(cpu) {
 		struct crypto_comp *tfm = crypto_alloc_comp(alg_name, 0,
 							    CRYPTO_ALG_ASYNC);
-		if (!tfm)
+		if (IS_ERR(tfm))
 			goto error;
 		*per_cpu_ptr(tfms, cpu) = tfm;
 	}