On Thu, Nov 17, 2011 at 03:26:17PM +0800, Li Zefan wrote:
> diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
> index 8c32434..89cc54e 100644
> --- a/fs/btrfs/free-space-cache.c
> +++ b/fs/btrfs/free-space-cache.c
> +static int trim_no_bitmap(struct btrfs_block_group_cache *block_group,
> + u64 *total_trimmed, u64 start, u64 end, u64 minlen)
> +{
> + struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl;
> + struct btrfs_free_space *entry;
> + struct rb_node *node;
> + int ret;
int ret = 0;
CC [M] fs/btrfs/free-space-cache.o
fs/btrfs/free-space-cache.c: In function trim_no_bitmap:
fs/btrfs/free-space-cache.c:2636: warning: ret may be used uninitialized in this function
Although it seems the uninitialized value could never be returned.
david
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