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From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: linux-media@vger.kernel.org, imx@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org
Cc: Nicolas Dufresne <nicolas.dufresne@collabora.com>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>
Subject: [PATCH 12/25] media: imx-pxp: Drop unneeded v4l2_m2m_get_vq() NULL check
Date: Wed,  8 Oct 2025 20:50:39 +0300	[thread overview]
Message-ID: <20251008175052.19925-13-laurent.pinchart@ideasonboard.com> (raw)
In-Reply-To: <20251008175052.19925-1-laurent.pinchart@ideasonboard.com>

The v4l2_m2m_get_vq() function never returns NULL.

In the set format handler, the check may have been intended to catch
invalid format types, but that's not needed as the V4L2 core picks the
appropriate VIDIOC_S_FMT ioctl handler based on the format type, so the
type can't be incorrect.

In the get format handler, the return value is not used for any purpose
other than the NULL check, which was therefore probably intended to
catch invalid format types. That's not needed for the same reason as in
the set format handler.

Drop the unneeded return value checks and, as the function has no side
effect, the unneeded function call as well.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 drivers/media/platform/nxp/imx-pxp.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/media/platform/nxp/imx-pxp.c b/drivers/media/platform/nxp/imx-pxp.c
index 7f8ffbac582f..5386650ce194 100644
--- a/drivers/media/platform/nxp/imx-pxp.c
+++ b/drivers/media/platform/nxp/imx-pxp.c
@@ -1180,13 +1180,8 @@ static int pxp_enum_fmt_vid_out(struct file *file, void *priv,
 
 static int pxp_g_fmt(struct pxp_ctx *ctx, struct v4l2_format *f)
 {
-	struct vb2_queue *vq;
 	struct pxp_q_data *q_data;
 
-	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
-	if (!vq)
-		return -EINVAL;
-
 	q_data = get_q_data(ctx, f->type);
 
 	f->fmt.pix.width	= q_data->width;
@@ -1329,8 +1324,6 @@ static int pxp_s_fmt(struct pxp_ctx *ctx, struct v4l2_format *f)
 	struct vb2_queue *vq;
 
 	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
-	if (!vq)
-		return -EINVAL;
 
 	q_data = get_q_data(ctx, f->type);
 	if (!q_data)
-- 
Regards,

Laurent Pinchart



  parent reply	other threads:[~2025-10-08 17:51 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20251008175052.19925-1-laurent.pinchart@ideasonboard.com>
2025-10-08 17:50 ` [PATCH 03/25] media: meson-g2d: Drop unneeded v4l2_m2m_get_vq() NULL check Laurent Pinchart
2025-10-08 18:13   ` Neil Armstrong
2025-10-08 17:50 ` [PATCH 08/25] media: mediatek: jpeg: " Laurent Pinchart
2025-10-08 17:50 ` [PATCH 09/25] media: mediatek: vcodec: " Laurent Pinchart
2025-10-08 17:50 ` [PATCH 11/25] media: imx-jpeg: " Laurent Pinchart
2025-10-08 20:01   ` Frank Li
2025-10-08 17:50 ` Laurent Pinchart [this message]
2025-10-08 20:02   ` [PATCH 12/25] media: imx-pxp: " Frank Li
2025-10-09  8:11   ` Philipp Zabel
2025-10-08 17:50 ` [PATCH 13/25] media: nxp: imx8-isi: " Laurent Pinchart
2025-10-08 20:02   ` Frank Li
2025-10-08 17:50 ` [PATCH 19/25] media: platform: rga: " Laurent Pinchart
2025-10-08 17:50 ` [PATCH 20/25] media: samsung: s5p-g2d: " Laurent Pinchart
2025-10-10 11:00   ` Lukasz Stelmach
2025-10-08 17:50 ` [PATCH 21/25] media: samsung: s5p-jpeg: " Laurent Pinchart
2025-10-08 17:50 ` [PATCH 22/25] media: stm32: dma2d: " Laurent Pinchart

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