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Btrfs: make sure btrfs_remove_free_space doesn't leak EAGAIN

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btrfs_remove_free_space needs to make sure to set ret back to a
valid return value after setting it to EAGAIN, otherwise we return
it to the callers.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2011-10-14 06:31:20 -04:00
parent cd354ad613
commit 1eae31e918
1 changed files with 3 additions and 1 deletions
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4
fs/btrfs/free-space-cache.c
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@ -1868,6 +1868,7 @@ again:
ctl->total_bitmaps--; ctl->total_bitmaps--;
} }
kmem_cache_free(btrfs_free_space_cachep, info); kmem_cache_free(btrfs_free_space_cachep, info);
ret = 0;
goto out_lock; goto out_lock;
} }
@ -1875,7 +1876,8 @@ again:
unlink_free_space(ctl, info); unlink_free_space(ctl, info);
info->offset += bytes; info->offset += bytes;
info->bytes -= bytes; info->bytes -= bytes;
link_free_space(ctl, info); ret = link_free_space(ctl, info);
WARN_ON(ret);
goto out_lock; goto out_lock;
} }