[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>

1 files changed, 4 insertions, 4 deletions

diff --git a/kernel/kmod.c b/kernel/kmod.c
index bb4e29d924e..2b76dee2849 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;