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From: Benjamin Gaignard <benjamin.gaignard@collabora.com>
To: ezequiel@vanguardiasur.com.ar, p.zabel@pengutronix.de,
	mchehab@kernel.org, m.szyprowski@samsung.com
Cc: linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org,
	linux-kernel@vger.kernel.org, kernel@collabora.com,
	Benjamin Gaignard <benjamin.gaignard@collabora.com>
Subject: [PATCH] media: verisilicon: Fix crash when probing encoder
Date: Thu, 13 Apr 2023 09:03:44 +0200	[thread overview]
Message-ID: <20230413070344.34803-1-benjamin.gaignard@collabora.com> (raw)

ctx->vpu_dst_fmt is no more initialized before calling hantro_try_fmt()
so assigne it to vpu_fmt led to crash the kernel.
Like for decoder case use 'fmt' as vpu format for encoder and clean up
the code.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: db6f68b51e5c ("media: verisilicon: Do not set context src/dst formats in reset functions")
---
 drivers/media/platform/verisilicon/hantro_v4l2.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index 8f1414085f47..51f528f36241 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -293,13 +293,11 @@ static int hantro_try_fmt(const struct hantro_ctx *ctx,
 		pix_mp->pixelformat = fmt->fourcc;
 	}
 
+	vpu_fmt = fmt;
+
 	if (coded) {
 		pix_mp->num_planes = 1;
-		vpu_fmt = fmt;
-	} else if (ctx->is_encoder) {
-		vpu_fmt = ctx->vpu_dst_fmt;
-	} else {
-		vpu_fmt = fmt;
+	} else if (!ctx->is_encoder) {
 		/*
 		 * Width/height on the CAPTURE end of a decoder are ignored and
 		 * replaced by the OUTPUT ones.
-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Gaignard <benjamin.gaignard@collabora.com>
To: ezequiel@vanguardiasur.com.ar, p.zabel@pengutronix.de,
	mchehab@kernel.org, m.szyprowski@samsung.com
Cc: linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org,
	linux-kernel@vger.kernel.org, kernel@collabora.com,
	Benjamin Gaignard <benjamin.gaignard@collabora.com>
Subject: [PATCH] media: verisilicon: Fix crash when probing encoder
Date: Thu, 13 Apr 2023 09:03:44 +0200	[thread overview]
Message-ID: <20230413070344.34803-1-benjamin.gaignard@collabora.com> (raw)

ctx->vpu_dst_fmt is no more initialized before calling hantro_try_fmt()
so assigne it to vpu_fmt led to crash the kernel.
Like for decoder case use 'fmt' as vpu format for encoder and clean up
the code.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: db6f68b51e5c ("media: verisilicon: Do not set context src/dst formats in reset functions")
---
 drivers/media/platform/verisilicon/hantro_v4l2.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index 8f1414085f47..51f528f36241 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -293,13 +293,11 @@ static int hantro_try_fmt(const struct hantro_ctx *ctx,
 		pix_mp->pixelformat = fmt->fourcc;
 	}
 
+	vpu_fmt = fmt;
+
 	if (coded) {
 		pix_mp->num_planes = 1;
-		vpu_fmt = fmt;
-	} else if (ctx->is_encoder) {
-		vpu_fmt = ctx->vpu_dst_fmt;
-	} else {
-		vpu_fmt = fmt;
+	} else if (!ctx->is_encoder) {
 		/*
 		 * Width/height on the CAPTURE end of a decoder are ignored and
 		 * replaced by the OUTPUT ones.
-- 
2.34.1


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             reply	other threads:[~2023-04-13  7:03 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-13  7:03 Benjamin Gaignard [this message]
2023-04-13  7:03 ` [PATCH] media: verisilicon: Fix crash when probing encoder Benjamin Gaignard
2023-04-13 19:45 ` Nicolas Dufresne
2023-04-13 19:45   ` Nicolas Dufresne

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