From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 AD5201A585 for ; Mon, 16 Oct 2023 08:55:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="mVSBj66t" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 32AF9C433C8; Mon, 16 Oct 2023 08:55:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1697446515; bh=XyAbllP6/O4VNd8ukVd+SGwdH8iz9QMe+Rqk3Ga3nPU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mVSBj66tPAl3HIN9kCgX6fPOMVsCUdlVOphAvSGA9Onbxbiw12AL77NsmVx0iR1TM bILZCQLW0Cu+KTl3TuVv0lP2IthQ9rf9YTFyuSQM6UiQPcCBrTNYVu74dQwUz5RO0M q/+ktTrvN9c14v5djWikYwi67tgUzgY47ueXElM0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dan Carpenter , Konrad Dybcio , Abhinav Kumar , Sasha Levin Subject: [PATCH 6.1 036/131] drm/msm/dsi: fix irq_of_parse_and_map() error checking Date: Mon, 16 Oct 2023 10:40:19 +0200 Message-ID: <20231016084000.964717459@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231016084000.050926073@linuxfoundation.org> References: <20231016084000.050926073@linuxfoundation.org> User-Agent: quilt/0.67 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 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter [ Upstream commit 6a1d4c7976dd1ee7c9f80bc8e62801ec7b1f2f58 ] The irq_of_parse_and_map() function returns zero on error. It never returns negative error codes. Fix the check. Fixes: a689554ba6ed ("drm/msm: Initial add DSI connector support") Signed-off-by: Dan Carpenter Reviewed-by: Konrad Dybcio Reviewed-by: Abhinav Kumar Patchwork: https://patchwork.freedesktop.org/patch/557715/ Link: https://lore.kernel.org/r/4f3c5c98-04f7-43f7-900f-5d7482c83eef@moroto.mountain Signed-off-by: Abhinav Kumar Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/dsi/dsi_host.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 6c1ebeb9023eb..e20cd3dd2c6cc 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1972,10 +1972,9 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi) } msm_host->irq = irq_of_parse_and_map(pdev->dev.of_node, 0); - if (msm_host->irq < 0) { - ret = msm_host->irq; - dev_err(&pdev->dev, "failed to get irq: %d\n", ret); - return ret; + if (!msm_host->irq) { + dev_err(&pdev->dev, "failed to get irq\n"); + return -EINVAL; } /* do not autoenable, will be enabled later */ -- 2.40.1