From: Tzung-Bi Shih <tzungbi@kernel.org>
To: Rob Barnes <robbarnes@google.com>
Cc: bleung@chromium.org, tomhughes@chromium.org,
chrome-platform@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5] platform/chrome: cros_ec_proto: Fix deferred response
Date: Tue, 1 Sep 2026 02:20:48 +0000 [thread overview]
Message-ID: <apY2gGlAXsuqjCPR@google.com> (raw)
In-Reply-To: <20260901005126.3344929-1-robbarnes@google.com>
On Mon, Aug 31, 2026 at 06:51:26PM -0600, Rob Barnes wrote:
> When cros_ec_wait_until_complete() succeeds after an
> EC_RES_IN_PROGRESS status, it previously returned the 4-byte
> transfer size of EC_CMD_GET_COMMS_STATUS. For 0-byte payload
> commands (such as EC_CMD_FLASH_ERASE), userspace received 4
> bytes instead of 0, causing response size validation errors.
> For commands expecting non-zero response payloads, the kernel
> exited without issuing EC_CMD_RESEND_RESPONSE, leaving response
> buffers uninitialized.
>
> [...]
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git for-next
[1/1] platform/chrome: cros_ec_proto: Fix deferred response
commit: c55749415623a58eba3eb527da023d29b43fbf5d
Thanks!
prev parent reply other threads:[~2026-09-01 2:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-01 0:51 Rob Barnes
2026-09-01 2:20 ` Tzung-Bi Shih [this message]
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