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 E879F8632E; Tue, 11 Mar 2025 15:09:11 +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=1741705752; cv=none; b=VuoAIz8lSc5qMji1a/8Yk4+F7XetaFtl9jGe6AMIlhHDrKdEzxI0pcLdXt5Z31IrnrNFuHCf6YdjBqR6G/z1seBs/LQwL0K/XFjTQbXaBYVZjHOt+4pQoBd3WRkn7QcgJZq1BG/Id7yel5xCPb+c2JuolKkiOEe2oqLRpIMNjTE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741705752; c=relaxed/simple; bh=dB37TrhG258lkjFipD0a5UIGDfwpw84oI6Qav2q/qbA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=apnfwFyJm0YjEgmthxlsB4vcSb7eZxA0uQR0UPZ7CiObeTms9KoWrBXYHUu0MHnCtAmjSwQ55pKZuYHbamJ6cDOuGzsASl/2EDwn/yC3XK0r5ksAdU5m3j/bCSLsTMNGBpXaO2BIfnrAYvtIa5jJ9QILuTZ1X59xrsshH56pzyQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=RUGqrkqL; 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="RUGqrkqL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6F988C4CEE9; Tue, 11 Mar 2025 15:09:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1741705751; bh=dB37TrhG258lkjFipD0a5UIGDfwpw84oI6Qav2q/qbA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RUGqrkqL8X6BnKjLDuBGzF8a60xEzytRQVoh994asSDxD7iFp9x6ARHdOQhcBbyvg Loows/ivkXaPxLEutrBBUenaH0HMgb8WyHnyBUQxCtjJ9mzfARJ8wC+FkhknEY4QN0 Q6wtUXt4JIdd/BBa0vzPRxHszC2A6GX5je/WyMD4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Haoxiang Li , Liviu Dudau Subject: [PATCH 5.4 125/328] drm/komeda: Add check for komeda_get_layer_fourcc_list() Date: Tue, 11 Mar 2025 15:58:15 +0100 Message-ID: <20250311145719.867265293@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250311145714.865727435@linuxfoundation.org> References: <20250311145714.865727435@linuxfoundation.org> User-Agent: quilt/0.68 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 5.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Haoxiang Li commit 79fc672a092d93a7eac24fe20a571d4efd8fa5a4 upstream. Add check for the return value of komeda_get_layer_fourcc_list() to catch the potential exception. Fixes: 5d51f6c0da1b ("drm/komeda: Add writeback support") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li Acked-by: Liviu Dudau Link: https://lore.kernel.org/r/20241219090256.146424-1-haoxiang_li2024@163.com Signed-off-by: Liviu Dudau Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c @@ -159,6 +159,10 @@ static int komeda_wb_connector_add(struc formats = komeda_get_layer_fourcc_list(&mdev->fmt_tbl, kwb_conn->wb_layer->layer_type, &n_formats); + if (!formats) { + kfree(kwb_conn); + return -ENOMEM; + } err = drm_writeback_connector_init(&kms->base, wb_conn, &komeda_wb_connector_funcs,