To avoid to 'state->fc_regions_size' mismatch with 'state->fc_regions'
when fail to reallocate 'fc_reqions',only update 'state->fc_regions_size'
after 'state->fc_regions' is allocated successfully.
Signed-off-by: Ye Bin <yebin10@xxxxxxxxxx>
---
fs/ext4/fast_commit.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index f5b0fc50ed47..694ab0627395 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1681,14 +1681,15 @@ int ext4_fc_record_regions(struct super_block *sb, int ino,
if (state->fc_regions_used == state->fc_regions_size) {
struct ext4_fc_alloc_region *fc_regions;
- state->fc_regions_size +=
- EXT4_FC_REPLAY_REALLOC_INCREMENT;
fc_regions = krealloc(state->fc_regions,
- state->fc_regions_size *
- sizeof(struct ext4_fc_alloc_region),
+ sizeof(struct ext4_fc_alloc_region) *
+ (state->fc_regions_size +
+ EXT4_FC_REPLAY_REALLOC_INCREMENT),
GFP_KERNEL);
if (!fc_regions)
return -ENOMEM;
+ state->fc_regions_size +=
+ EXT4_FC_REPLAY_REALLOC_INCREMENT;
state->fc_regions = fc_regions;
}
region = &state->fc_regions[state->fc_regions_used++];
--
2.31.1
