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From: Deepak R Varma <drv@mailo.com>
To: Steve Longerbeam <slongerbeam@gmail.com>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	linux-media@vger.kernel.org, linux-staging@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: Saurabh Singh Sengar <ssengar@microsoft.com>,
	Praveen Kumar <kumarpraveen@linux.microsoft.com>,
	Deepak R Varma <drv@mailo.com>
Subject: [PATCH v2] staging: media: imx: change imx_media_fim_set_stream() to return void
Date: Tue, 3 Jan 2023 23:08:20 +0530	[thread overview]
Message-ID: <Y7RoDHnyHNnlPV71@qemulion> (raw)

At present, the function imx_media_fim_set_stream() always returns 0.
So, convert it to be a function returning void instead. Issue identified
using the returnvar.cocci Coccinelle semantic patch.

Signed-off-by: Deepak R Varma <drv@mailo.com>
---
Changes in v2:
   1. Convert the function return type from int to void. Suggested by
      Fabio Estevam <festevam@gmail.com>
   2. Update patch subject and log accordingly.


 drivers/staging/media/imx/imx-media-csi.c | 7 ++-----
 drivers/staging/media/imx/imx-media-fim.c | 8 +++-----
 drivers/staging/media/imx/imx-media.h     | 6 +++---
 3 files changed, 8 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
index 5c3cc7de209d..44d87fe30d52 100644
--- a/drivers/staging/media/imx/imx-media-csi.c
+++ b/drivers/staging/media/imx/imx-media-csi.c
@@ -779,11 +779,8 @@ static int csi_start(struct csi_priv *priv)
 		goto idmac_stop;

 	/* start the frame interval monitor */
-	if (priv->fim && priv->dest == IPU_CSI_DEST_IDMAC) {
-		ret = imx_media_fim_set_stream(priv->fim, output_fi, true);
-		if (ret)
-			goto idmac_stop;
-	}
+	if (priv->fim && priv->dest == IPU_CSI_DEST_IDMAC)
+		imx_media_fim_set_stream(priv->fim, output_fi, true);

 	ret = ipu_csi_enable(priv->csi);
 	if (ret) {
diff --git a/drivers/staging/media/imx/imx-media-fim.c b/drivers/staging/media/imx/imx-media-fim.c
index fb6590dcfc36..f456751f100a 100644
--- a/drivers/staging/media/imx/imx-media-fim.c
+++ b/drivers/staging/media/imx/imx-media-fim.c
@@ -368,12 +368,11 @@ void imx_media_fim_eof_monitor(struct imx_media_fim *fim, ktime_t timestamp)
 }

 /* Called by the subdev in its s_stream callback */
-int imx_media_fim_set_stream(struct imx_media_fim *fim,
-			     const struct v4l2_fract *fi,
-			     bool on)
+void imx_media_fim_set_stream(struct imx_media_fim *fim,
+			      const struct v4l2_fract *fi,
+			      bool on)
 {
 	unsigned long flags;
-	int ret = 0;

 	v4l2_ctrl_lock(fim->ctrl[FIM_CL_ENABLE]);

@@ -393,7 +392,6 @@ int imx_media_fim_set_stream(struct imx_media_fim *fim,
 	fim->stream_on = on;
 out:
 	v4l2_ctrl_unlock(fim->ctrl[FIM_CL_ENABLE]);
-	return ret;
 }

 int imx_media_fim_add_controls(struct imx_media_fim *fim)
diff --git a/drivers/staging/media/imx/imx-media.h b/drivers/staging/media/imx/imx-media.h
index f679249d82e4..6f9a46573edd 100644
--- a/drivers/staging/media/imx/imx-media.h
+++ b/drivers/staging/media/imx/imx-media.h
@@ -246,9 +246,9 @@ int imx_media_dev_notifier_register(struct imx_media_dev *imxmd,
 /* imx-media-fim.c */
 struct imx_media_fim;
 void imx_media_fim_eof_monitor(struct imx_media_fim *fim, ktime_t timestamp);
-int imx_media_fim_set_stream(struct imx_media_fim *fim,
-			     const struct v4l2_fract *frame_interval,
-			     bool on);
+void imx_media_fim_set_stream(struct imx_media_fim *fim,
+			      const struct v4l2_fract *frame_interval,
+			      bool on);
 int imx_media_fim_add_controls(struct imx_media_fim *fim);
 struct imx_media_fim *imx_media_fim_init(struct v4l2_subdev *sd);
 void imx_media_fim_free(struct imx_media_fim *fim);
--
2.34.1




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             reply	other threads:[~2023-01-03 19:04 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-03 17:38 Deepak R Varma [this message]
2023-01-22 19:58 ` [PATCH v2] staging: media: imx: change imx_media_fim_set_stream() to return void Deepak R Varma
2023-01-23  9:24   ` Marco Felsch

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