[PATCH 1/4] fs: btrfs: inode: handle uninitialized type before returning it

[Tom Rini]

On Sat, Oct 31, 2020 at 09:07:49AM +0800, Qu Wenruo wrote:

> In btrfs_lookup_path() the local variable @type should always be updated
> after we hit any file/dir.
> 
> But if @filename is NULL from the very beginning, then we don't
> initialize it and return it directly.
> 
> To prevent such problem from happening, we initialize @type to
> BTRFS_FT_UNKNOWN.
> For normal execution route, it will get updated for each filename we
> resolved.
> Buf if we didn't find any path, we check if the type is still FT_UNKNOWN
> and ret == 0. If true we know there is something wrong, just return
> -EUCLEAN to inform the caller.
> 
> Reported-by: Coverity CID 312958
> Signed-off-by: Qu Wenruo <wqu at suse.com>
> Reviewed-by: Marek Behún <marek.behun at nic.cz>

Applied to u-boot/master, thanks!

-- 
Tom
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