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| author |   Theodore Ts'o <tytso@mit.edu> | 2010-07-27 11:56:04 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2010-07-27 11:56:04 -0400 |
| commit | e5880d76aea443b04e07da19830da0f6f7494eef (patch) | |
| tree | 24ad55c300a63170ffcf5a777dc737c67d80e00c /fs/ext4 | |
| parent | ext4: Define s_jnl_backup_type in superblock (diff) | |
| download | linux-dev-e5880d76aea443b04e07da19830da0f6f7494eef.tar.xz linux-dev-e5880d76aea443b04e07da19830da0f6f7494eef.zip | |
ext4: fix potential NULL dereference while tracing
The allocation_context pointer can be NULL.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/mballoc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 3dfad95f0f98..8b3b9344a595 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -3575,7 +3575,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh, trace_ext4_mballoc_discard(ac); } - trace_ext4_mb_release_inode_pa(ac, pa, grp_blk_start + bit, + trace_ext4_mb_release_inode_pa(sb, ac, pa, grp_blk_start + bit, next - bit); mb_free_blocks(pa->pa_inode, e4b, bit, next - bit); bit = next + 1; @@ -3606,7 +3606,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b, ext4_group_t group; ext4_grpblk_t bit; - trace_ext4_mb_release_group_pa(ac, pa); + trace_ext4_mb_release_group_pa(sb, ac, pa); BUG_ON(pa->pa_deleted == 0); ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit); BUG_ON(group != e4b->bd_group && pa->pa_len != 0); |