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 CB10F1D0DF2; Wed, 2 Oct 2024 14:02:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727877744; cv=none; b=Zbdkmjlakgj6iFGGjpWZt+71xRuYw797Q0TBy//9yzCHH8MpeknkXLNTiW3LclTTgivRVBSm1EuKVb8l1FtV82APWI8NKvC7JDwuR4lPfl0Zao5kr5NCE9CF5Pun5GEOsKcJ0bI0LAGNigDWTR891GmJNEmHrEJJ9wRjV/gO+O0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727877744; c=relaxed/simple; bh=AOAu6gpmNmTzLGEIf5gqV3VCvfn29BVcwSFYEPJeNEY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=s+uTgwtiZJq4Rj0Mdzq42X7ct1akKGD+42HIUnd+t/n9QaIhfDFt12bojMfTIfAGefUWF9L3hI0AUo8+NSkRjuzUJmPmA9zdFzNc5/h/OJCYLCX7Q1y+VvPbFulin7LHQo/Ikf8hHfEb6teCfVBi0Fclhgv1OZ5Szr15hWu5m+Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=MhJsHFYP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="MhJsHFYP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 523B2C4CEC5; Wed, 2 Oct 2024 14:02:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1727877744; bh=AOAu6gpmNmTzLGEIf5gqV3VCvfn29BVcwSFYEPJeNEY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MhJsHFYPz/WrycQjrZPtr5yMn/iU/XE8KjUB4Z5RT1TJS6fS2cRI8ODCnrfTSWEXe aEgRUCxVzQPxDHFWBtuLfH86FiznU7X9BUOj/3LrO3mPY/v1RZV/Hnu7fpMPNGvs0L pF2Juj9KS6OXoelHOYLDczbFs0OYtG9+l9lJ8/fc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Claudiu Beznea , Raphael Gallais-Pou , Sasha Levin Subject: [PATCH 6.10 180/634] drm/stm: ltdc: check memory returned by devm_kzalloc() Date: Wed, 2 Oct 2024 14:54:40 +0200 Message-ID: <20241002125818.213241135@linuxfoundation.org> X-Mailer: git-send-email 2.46.2 In-Reply-To: <20241002125811.070689334@linuxfoundation.org> References: <20241002125811.070689334@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Claudiu Beznea [ Upstream commit fd39730c58890cd7f0a594231e19bb357f28877c ] devm_kzalloc() can fail and return NULL pointer. Check its return status. Identified with Coccinelle (kmerr.cocci script). Fixes: 484e72d3146b ("drm/stm: ltdc: add support of ycbcr pixel formats") Signed-off-by: Claudiu Beznea Acked-by: Raphael Gallais-Pou Link: https://patchwork.freedesktop.org/patch/msgid/20230531072854.142629-1-claudiu.beznea@microchip.com Signed-off-by: Raphael Gallais-Pou Signed-off-by: Sasha Levin --- drivers/gpu/drm/stm/ltdc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index 5576fdae49623..5aec1e58c968c 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -1580,6 +1580,8 @@ static struct drm_plane *ltdc_plane_create(struct drm_device *ddev, ARRAY_SIZE(ltdc_drm_fmt_ycbcr_sp) + ARRAY_SIZE(ltdc_drm_fmt_ycbcr_fp)) * sizeof(*formats), GFP_KERNEL); + if (!formats) + return NULL; for (i = 0; i < ldev->caps.pix_fmt_nb; i++) { drm_fmt = ldev->caps.pix_fmt_drm[i]; -- 2.43.0