From aa877b3dc9f2a1fdffac4ea36bee97c21db11a69 Mon Sep 17 00:00:00 2001 From: Glauber de Oliveira Costa Date: Mon, 28 Nov 2005 13:44:02 -0800 Subject: [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 Cc: "Stephen C. Tweedie" Cc: Andreas Dilger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext3/resize.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/ext3') diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c index 1be78b4b4de9..6104ad310507 100644 --- a/fs/ext3/resize.c +++ b/fs/ext3/resize.c @@ -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; } -- cgit v1.2.3-59-g8ed1b