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[PATCH] ext3: Wrong return value for EXT3_IOC_GROUP_ADD 

This patch corrects the return value for the EXT3_IOC_GROUP_ADD in case it
fails due to the presence of multiple resizers at the filesystem.

The problem is a little bit more serious than a wrong return value in this
case, since the clause err=0 in the exit_journal path will lead to a call
to update_backups which in turns causes a NULL pointer dereference.

Signed-off-by: Glauber de Oliveira Costa <glommer@br.ibm.com>
Cc: "Stephen C. Tweedie" <sct@redhat.com>
Cc: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
wifi-calibration
Glauber de Oliveira Costa 2005-11-28 13:44:02 -08:00 committed by Linus Torvalds
parent ad09d58310
commit aa877b3dc9
1 changed files with 1 additions and 0 deletions
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fs/ext3/resize.c
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@ -767,6 +767,7 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
if (input->group != EXT3_SB(sb)->s_groups_count) {
ext3_warning(sb, __FUNCTION__,
"multiple resizers run on filesystem!\n");
err = -EBUSY;
goto exit_journal;
}