From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3D9EF41A54B; Fri, 4 Sep 2026 05:43:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788500627; cv=none; b=r06IeoLUxTtX+IzVM+NALhOszWlblimx4q8BNvFmR+qSlkeHdKlirM6HOlM+AvEHjZ9TKX4F56tg291+Vt8/P87Msy6sqZaVmluJaeIAUV94ZE5eaHrNhaiOjPZjKrtJnItvIX/YkWS3Eo7hPr1oNQqoc9ctwA4oNxyFc6j/0WU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788500627; c=relaxed/simple; bh=AysQHSIA4Eq0EvRE1tY1uSiwhP8eobR1CCj/JAGJ1ug=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HA1lhdSd9CHg/e+2CLv3WjNqCFDSwTdArcUAy3c30CMqDr1DPOpIZZbfJo5sGE/jajDjKyb9fOkQRNen2RlxYwmepys0GPS9vWQacylwyLCI2Uk1nQc4JNjrJxshmrQYvxq17piaoLZ0ig49Lh6NdRUHoAUtwvTjGetVQilaBSg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Qq1Tx7gF; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Qq1Tx7gF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 904CB1F00A3D; Fri, 4 Sep 2026 05:43:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788500626; bh=LqFZ0ah7D1yWAydRXH2tM4F/6tfyHju6KNaXwqwSLno=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Qq1Tx7gFm7LiGCnQRkZg3DPJGWxmcZSlPZkTESr4w0sU3sZTv2IsMe11ku1jsuJ0I Z0Y3boql33s/JFcsv4Z+cslHGyUMpWvgf+3hgPp59mBvQml0NzAhBnFIafGjH9al8g ESi1R7uheicDe57KoI0M9IYe5tl0As+ki2qK8qB4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Hao-Qun Huang Subject: [PATCH 6.18 070/552] staging: greybus: hid: fix SET_REPORT return value Date: Fri, 4 Sep 2026 06:53:47 +0200 Message-ID: <20260904045749.435637030@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260904045747.813364717@linuxfoundation.org> References: <20260904045747.813364717@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Hao-Qun Huang commit 6d45195a9626d8aaaaed212c55638829a9c624a3 upstream. __gb_hid_output_raw_report() stores the result of gb_hid_set_report() in ret and even adjusts it to account for the report ID byte, but then always returns 0. This hides Greybus transport errors from HID_REQ_SET_REPORT callers, and makes hidraw report zero bytes written to user space on success, although hid_hw_raw_request() is expected to return the number of bytes transferred or a negative errno. The sibling GET_REPORT path, __gb_hid_get_raw_report(), already follows this convention. Return ret like the other HID transport drivers do. Fixes: 96eab779e198 ("greybus: hid: add HID class driver") Cc: stable@vger.kernel.org Assisted-by: Claude:claude-fable-5 Signed-off-by: Hao-Qun Huang Link: https://patch.msgid.link/20260704081613.434445-1-alvinhuang0603@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/staging/greybus/hid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/staging/greybus/hid.c +++ b/drivers/staging/greybus/hid.c @@ -256,7 +256,7 @@ static int __gb_hid_output_raw_report(st if (report_id && ret >= 0) ret++; /* add report_id to the number of transferred bytes */ - return 0; + return ret; } static int gb_hid_raw_request(struct hid_device *hid, unsigned char reportnum,