[PATCH] ext4: fix error handling in ext4_create_journal

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On Tue, Jul 03, 2007 at 03:25:43PM -0700, Andrew Morton wrote:

> Please prepare the equivalent patch for ext4.  Without that, it'd probably
> be better to avoid applying the ext3 patch: there are advantages to keeping
> the two in sync where possible.

Hi Andrew,

   here you go. By the way, this one is with generated diffstat. Do you prefer
   it that way or is a diffstat for a patch touching a single file too much?

-----
From: Borislav Petkov <bbpetkov@xxxxxxxx>

Fix error handling in ext4_create_journal according to kernel conventions.

Signed-off-by: Borislav Petkov <bbpetkov@xxxxxxxx>

---
 linux-2.6.22-rc7/fs/ext4/super.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

Index: linux-2.6.22-rc7/fs/ext4/super.c
===================================================================
--- linux-2.6.22-rc7/fs/ext4/super.c.orig	2007-07-04 21:18:24.000000000 +0200
+++ linux-2.6.22-rc7/fs/ext4/super.c	2007-07-04 21:19:46.000000000 +0200
@@ -2150,6 +2150,7 @@
 			       unsigned int journal_inum)
 {
 	journal_t *journal;
+	int err;
 
 	if (sb->s_flags & MS_RDONLY) {
 		printk(KERN_ERR "EXT4-fs: readonly filesystem when trying to "
@@ -2157,13 +2158,15 @@
 		return -EROFS;
 	}
 
-	if (!(journal = ext4_get_journal(sb, journal_inum)))
+	journal = ext4_get_journal(sb, journal_inum);
+	if (!journal)
 		return -EINVAL;
 
 	printk(KERN_INFO "EXT4-fs: creating new journal on inode %u\n",
 	       journal_inum);
 
-	if (jbd2_journal_create(journal)) {
+	err = jbd2_journal_create(journal);
+	if (err) {
 		printk(KERN_ERR "EXT4-fs: error creating journal.\n");
 		jbd2_journal_destroy(journal);
 		return -EIO;
-- 
Regards/Gruß,
    Boris.
-
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