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 7965F2BEC2C; Sun, 1 Mar 2026 01:30:58 +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=1772328658; cv=none; b=XEzXwTZVJs3dltHHSGmE+9cO17yObXv2o71iJWVUm8cB3BX+Gncm6QfcSCojlJBOhcoq6y/VtAger9VFik6gKR/eHb8EoLg2MbfnUookdKK6szuODrTv6cZgnasO3DO8TVlhs5iPHNjz6oVZTAbkWscnKCfiIf2nnNO2fWaXYUc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772328658; c=relaxed/simple; bh=BxNeqP8cU8tj8jwijO1wKYNCYi0T3XxDYn9+O1aDONE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=bB6XjVhaC7z87f4XCn1k6vZYky5lhn1sgj/ZI0ROjEZYw+aVEa0KqbxJ1eKU5cQ9MHAs8Lk/Gpc80s0yrZTVftd+rkNHl4nQgNfyD4FF0hArZjY225tv4qepJG0reiRfyNiDO4Ew/SHgIIWuvKZg9T9SYeklt1BWlrqzC+wXfHk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=q6mK4hM+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="q6mK4hM+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 48724C19421; Sun, 1 Mar 2026 01:30:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772328658; bh=BxNeqP8cU8tj8jwijO1wKYNCYi0T3XxDYn9+O1aDONE=; h=From:To:Cc:Subject:Date:From; b=q6mK4hM+RA3jlvp5Yn0DDQ9bcIRbujisDTxJhjUGYttoNMqkEdrTQ8QYlby6/AUrN Zo0QrReqcJ3yDi6/voqTXwdfynILbI4qn+yIAZo/cIqsdmYFK+Te3nG0nMM4ifzdgq to2Mg80Roi5s+9hfUn/tSCzPAeLqzXU2Qn7F6GJFWD9KWMxEDpTlDw7OI42HX+HeLl 9VwVnkdVCJUkID71Cxk9mDS8/2ywLpyybc1Bh79MG7J7miWsUdgfq6oZGR9OkfmoKJ iqMPq2edwm9bf6YnlcW7GBGRLQvPok2/3XpFaeN8ppmEPdEBhIokHHkGbVENSJI9HQ TVvLeil8xcMrA== From: Sasha Levin To: stable@vger.kernel.org, irui.wang@mediatek.com Cc: AngeloGioacchino Del Regno , Nicolas Dufresne , Hans Verkuil , linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: FAILED: Patch "media: mediatek: encoder: Fix uninitialized scalar variable issue" failed to apply to 6.6-stable tree Date: Sat, 28 Feb 2026 20:30:55 -0500 Message-ID: <20260301013056.1689285-1-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Hint: ignore X-stable: review Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.6-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 . Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From 88e935de7cf8795d7a6a51385db87ecb361a7050 Mon Sep 17 00:00:00 2001 From: Irui Wang Date: Sun, 7 Sep 2025 17:35:56 +0800 Subject: [PATCH] media: mediatek: encoder: Fix uninitialized scalar variable issue UNINIT checker finds some instances of variables that are used without being initialized, for example using the uninitialized value enc_result.is_key_frm can result in unpredictable behavior, so initialize these variables after declaring. Fixes: 4e855a6efa54 ("[media] vcodec: mediatek: Add Mediatek V4L2 Video Encoder Driver") Cc: stable@vger.kernel.org Signed-off-by: Irui Wang Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Nicolas Dufresne Signed-off-by: Hans Verkuil --- .../media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c index 6faf3f659e751..b3a0a1d8b7a8e 100644 --- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c +++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c @@ -850,7 +850,7 @@ static void vb2ops_venc_buf_queue(struct vb2_buffer *vb) static int vb2ops_venc_start_streaming(struct vb2_queue *q, unsigned int count) { struct mtk_vcodec_enc_ctx *ctx = vb2_get_drv_priv(q); - struct venc_enc_param param; + struct venc_enc_param param = { }; int ret; int i; @@ -1004,7 +1004,7 @@ static int mtk_venc_encode_header(void *priv) int ret; struct vb2_v4l2_buffer *src_buf, *dst_buf; struct mtk_vcodec_mem bs_buf; - struct venc_done_result enc_result; + struct venc_done_result enc_result = { }; dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); if (!dst_buf) { @@ -1125,7 +1125,7 @@ static void mtk_venc_worker(struct work_struct *work) struct vb2_v4l2_buffer *src_buf, *dst_buf; struct venc_frm_buf frm_buf; struct mtk_vcodec_mem bs_buf; - struct venc_done_result enc_result; + struct venc_done_result enc_result = { }; int ret, i; /* check dst_buf, dst_buf may be removed in device_run -- 2.51.0