From: Tom Rini <trini@konsulko.com>
To: u-boot@lists.denx.de
Subject: [PATCH 1/4] fs: btrfs: inode: handle uninitialized type before returning it
Date: Thu, 19 Nov 2020 20:36:16 -0500 [thread overview]
Message-ID: <20201120013616.GL32272@bill-the-cat> (raw)
In-Reply-To: <20201031010752.23974-2-wqu@suse.com>
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@suse.com>
> Reviewed-by: Marek Beh?n <marek.behun@nic.cz>
Applied to u-boot/master, thanks!
--
Tom
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next prev parent reply other threads:[~2020-11-20 1:36 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-31 1:07 [PATCH 0/4] fs: btrfs: coverity fixes Qu Wenruo
2020-10-31 1:07 ` [PATCH 1/4] fs: btrfs: inode: handle uninitialized type before returning it Qu Wenruo
2020-11-01 22:59 ` Marek Behun
2020-11-20 1:36 ` Tom Rini [this message]
2020-10-31 1:07 ` [PATCH 2/4] fs: btrfs: volumes: prevent overflow for multiplying Qu Wenruo
2020-11-01 23:02 ` Marek Behun
2020-11-02 0:20 ` Qu Wenruo
2020-11-02 1:06 ` Qu Wenruo
2021-01-20 21:46 ` Tom Rini
2020-10-31 1:07 ` [PATCH 3/4] fs: btrfs: initialize @ret to 0 to prevent uninitialized return value Qu Wenruo
2020-11-01 23:03 ` Marek Behun
2020-11-20 1:36 ` Tom Rini
2020-10-31 1:07 ` [PATCH 4/4] fs: btrfs: initialize @ii in show_dir() to make coverity happy Qu Wenruo
2020-11-01 23:06 ` Marek Behun
2020-11-02 0:27 ` Qu Wenruo
2020-11-02 7:24 ` Marek Behun
2020-11-02 7:27 ` Qu Wenruo
2020-11-02 20:17 ` Tom Rini
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