From: Dan Carpenter <error27@gmail.com>
Date: Mon, 10 Jan 2011 17:10:50 +0000 (-0500)
Subject: ext4: use IS_ERR() to check for errors in ext4_error_file
X-Git-Tag: v2.6.38-rc1~409^2~19
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=f9a62d090cf47fae2fe6f6bd8eb9f24482573fd8;p=~emulex%2Finfiniband.git

ext4: use IS_ERR() to check for errors in ext4_error_file

d_path() returns an ERR_PTR and it doesn't return NULL.  This is in
ext4_error_file() and no one actually calls ext4_error_file().

Signed-off-by: Dan Carpenter <error27@gmail.com>
---

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index c228da112de..d49e3b1ec41 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -437,7 +437,7 @@ void ext4_error_file(struct file *file, const char *function,
 	save_error_info(inode->i_sb, function, line);
 	va_start(args, fmt);
 	path = d_path(&(file->f_path), pathname, sizeof(pathname));
-	if (!path)
+	if (IS_ERR(path))
 		path = "(unknown)";
 	printk(KERN_CRIT
 	       "EXT4-fs error (device %s): %s:%d: inode #%lu "