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btrfs: fix memory leak in update_space_info failure path

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If we fail to add the space_info kobject, we'll leak the memory
for the percpu counter.

Fixes: 6ab0a2029c (btrfs: publish allocation data in sysfs)
Cc: <[email protected]> # v3.14+
Signed-off-by: Jeff Mahoney <[email protected]>
Reviewed-by: Liu Bo <[email protected]>
Signed-off-by: David Sterba <[email protected]>
This commit is contained in:
Jeff Mahoney 2017-05-17 09:49:37 -04:00 • committed by David Sterba
commit 896533a7da
1 changed files with 1 additions and 0 deletions
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1
fs/btrfs/extent-tree.c
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@ -3993,6 +3993,7 @@ static int update_space_info(struct btrfs_fs_info *info, u64 flags,
info->space_info_kobj, "%s",
alloc_name(found->flags));
if (ret) {
percpu_counter_destroy(&found->total_bytes_pinned);
kfree(found);
return ret;
}