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From: Fabio Estevam <festevam@gmail.com>
To: hverkuil-cisco@xs4all.nl
Cc: rmfrfs@gmail.com, p.zabel@pengutronix.de, slongerbeam@gmail.com,
	linux-media@vger.kernel.org, Fabio Estevam <festevam@gmail.com>
Subject: [PATCH 1/3] media: imx7-mipi-csis: Propagate the error if clock enabling fails
Date: Fri, 31 May 2019 14:45:04 -0300	[thread overview]
Message-ID: <20190531174506.13251-1-festevam@gmail.com> (raw)

Currently the return value from clk_bulk_prepare_enable() is checked,
but it is not propagate it in the case of failure.

Fix it and also move the error message to the caller of
mipi_csis_clk_enable().

Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
 drivers/staging/media/imx/imx7-mipi-csis.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c
index 042837b8ea28..1b538ae77364 100644
--- a/drivers/staging/media/imx/imx7-mipi-csis.c
+++ b/drivers/staging/media/imx/imx7-mipi-csis.c
@@ -456,13 +456,9 @@ static void mipi_csis_set_params(struct csi_state *state)
 			MIPI_CSIS_CMN_CTRL_UPDATE_SHADOW_CTRL);
 }
 
-static void mipi_csis_clk_enable(struct csi_state *state)
+static int mipi_csis_clk_enable(struct csi_state *state)
 {
-	int ret;
-
-	ret = clk_bulk_prepare_enable(state->num_clks, state->clks);
-	if (ret < 0)
-		dev_err(state->dev, "failed to enable clocks\n");
+	return clk_bulk_prepare_enable(state->num_clks, state->clks);
 }
 
 static void mipi_csis_clk_disable(struct csi_state *state)
@@ -989,7 +985,11 @@ static int mipi_csis_probe(struct platform_device *pdev)
 	if (ret < 0)
 		return ret;
 
-	mipi_csis_clk_enable(state);
+	ret = mipi_csis_clk_enable(state);
+	if (ret < 0) {
+		dev_err(state->dev, "failed to enable clocks: %d\n", ret);
+		return ret;
+	}
 
 	ret = devm_request_irq(dev, state->irq, mipi_csis_irq_handler,
 			       0, dev_name(dev), state);
-- 
2.17.1


             reply	other threads:[~2019-05-31 17:45 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-31 17:45 Fabio Estevam [this message]
2019-05-31 17:45 ` [PATCH 2/3] media: imx7-mipi-csis: Remove unneeded 'ret' initialization Fabio Estevam
2019-05-31 17:45 ` [PATCH 3/3] media: imx7-mipi-csis: Remove extra blank line Fabio Estevam
2019-06-03 17:46 ` [PATCH 1/3] media: imx7-mipi-csis: Propagate the error if clock enabling fails Rui Miguel Silva

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