Commit f7a1c358 authored by Jan Kara's avatar Jan Kara
Browse files

ext2: Check return value from ext2_get_group_desc() 



ext2_get_group_desc() can return NULL if there is some error. This
usually means there is some programming error in the ext2 driver itself
but let's be defensive and handle that case.

Coverity-id: 115628
Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent 81abf252

fs/ext2/ialloc.c

+5 −0
Original line number Diff line number Diff line
@@ -465,6 +465,11 @@ struct inode *ext2_new_inode(struct inode *dir, umode_t mode, 


	for (i = 0; i < sbi->s_groups_count; i++) {

		gdp = ext2_get_group_desc(sb, group, &bh2);

		if (!gdp) {

			if (++group == sbi->s_groups_count)

				group = 0;

			continue;

		}

		brelse(bitmap_bh);

		bitmap_bh = read_inode_bitmap(sb, group);

		if (!bitmap_bh) {

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