From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Tue, 28 Nov 2006 20:29:43 +0000 (-0800)
Subject: [PATCH] fix create_write_pipe() error check
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=3cce4856ff3dfa663b1a168dab48120d70820da6;p=openwrt%2Fstaging%2Fblogic.git

[PATCH] fix create_write_pipe() error check

The return value of create_write_pipe()/create_read_pipe() should be
checked by IS_ERR().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/kernel/kmod.c b/kernel/kmod.c
index bb4e29d924e4..2b76dee28496 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -307,14 +307,14 @@ int call_usermodehelper_pipe(char *path, char **argv, char **envp,
 		return 0;
 
 	f = create_write_pipe();
-	if (!f)
-		return -ENOMEM;
+	if (IS_ERR(f))
+		return PTR_ERR(f);
 	*filp = f;
 
 	f = create_read_pipe(f);
-	if (!f) {
+	if (IS_ERR(f)) {
 		free_write_pipe(*filp);
-		return -ENOMEM;
+		return PTR_ERR(f);
 	}
 	sub_info.stdin = f;