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 43D7D1FF7D0 for ; Fri, 6 Dec 2024 13:14:20 +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=1733490861; cv=none; b=tRlyfnWsF+TC2fS4/Z1wWfw5QEbSVU6NS+3rphjBQO2XDD5cYWn1aQh1aqyp6Dyh94qCmV4jUX4dg7wAunJEFRUyMEzmDu/ek/7BZInxxOM3bhVXG1keh0hbJU9bqFJmUU+ZKBNQ31WfJ2MPwkSXlvLgO3KVdEHAk56cli0olCs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733490861; c=relaxed/simple; bh=oma1DuKhyENO6uTv6wZca5C0+/IHon5X8Ijjk1qlV0A=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=URSR9OUKntEAwM59XwrVM1mU+LUGVmVhpdA/6e1otvvb4sEuq2MVP1duRG8YqZye76HBF9YpWtX1gpbo0W4DAmXqI3L6S1fq4ABAq+0rjmOmSG3JmIZnsCNp/GYyNcocBVR+sICftgaS8CYGkCx4ThRVPQFUohuWq9TL+CnRG1M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=JjFS5Xv9; 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="JjFS5Xv9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7D7B5C4CED1; Fri, 6 Dec 2024 13:14:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1733490860; bh=oma1DuKhyENO6uTv6wZca5C0+/IHon5X8Ijjk1qlV0A=; h=Subject:To:Cc:From:Date:From; b=JjFS5Xv93U+DmOVQXXFDEMvx1JO8zowog1CrLVrV12t6KY/KMFA5aBnyU6UiILLrE 3Wo8q4/eNZvokElcbv43g156k8ekWWTlToA9uImZZswpaH3jtthIrcu5xFCgxfajFS tA408JZAeXOEMlWDx5dAcecbRN9V7sRLRQGVb9/E= Subject: FAILED: patch "[PATCH] drm/sti: avoid potential dereference of error pointers in" failed to apply to 5.4-stable tree To: make24@iscas.ac.cn,alain.volmat@foss.st.com Cc: From: Date: Fri, 06 Dec 2024 14:14:08 +0100 Message-ID: <2024120608-overhang-raider-ef25@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x e965e771b069421c233d674c3c8cd8c7f7245f42 # git commit -s git send-email --to '' --in-reply-to '2024120608-overhang-raider-ef25@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From e965e771b069421c233d674c3c8cd8c7f7245f42 Mon Sep 17 00:00:00 2001 From: Ma Ke Date: Mon, 9 Sep 2024 14:33:59 +0800 Subject: [PATCH] drm/sti: avoid potential dereference of error pointers in sti_gdp_atomic_check The return value of drm_atomic_get_crtc_state() needs to be checked. To avoid use of error pointer 'crtc_state' in case of the failure. Cc: stable@vger.kernel.org Fixes: dd86dc2f9ae1 ("drm/sti: implement atomic_check for the planes") Signed-off-by: Ma Ke Acked-by: Alain Volmat Link: https://patchwork.freedesktop.org/patch/msgid/20240909063359.1197065-1-make24@iscas.ac.cn Signed-off-by: Alain Volmat diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c index 43c72c2604a0..f046f5f7ad25 100644 --- a/drivers/gpu/drm/sti/sti_gdp.c +++ b/drivers/gpu/drm/sti/sti_gdp.c @@ -638,6 +638,9 @@ static int sti_gdp_atomic_check(struct drm_plane *drm_plane, mixer = to_sti_mixer(crtc); crtc_state = drm_atomic_get_crtc_state(state, crtc); + if (IS_ERR(crtc_state)) + return PTR_ERR(crtc_state); + mode = &crtc_state->mode; dst_x = new_plane_state->crtc_x; dst_y = new_plane_state->crtc_y;