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Subject: media: v4l: cadence: Handle errors of clk_prepare_enable() Author: Evgeny Novikov <[email protected]> Date: Mon May 17 14:49:18 2021 +0200 Handle errors of clk_prepare_enable() in csi2tx_get_resources(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Evgeny Novikov <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/platform/cadence/cdns-csi2tx.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) --- diff --git a/drivers/media/platform/cadence/cdns-csi2tx.c b/drivers/media/platform/cadence/cdns-csi2tx.c index e4d08acfbb49..765ae408970a 100644 --- a/drivers/media/platform/cadence/cdns-csi2tx.c +++ b/drivers/media/platform/cadence/cdns-csi2tx.c @@ -436,6 +436,7 @@ static int csi2tx_get_resources(struct csi2tx_priv *csi2tx, struct resource *res; unsigned int i; u32 dev_cfg; + int ret; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); csi2tx->base = devm_ioremap_resource(&pdev->dev, res); @@ -454,7 +455,12 @@ static int csi2tx_get_resources(struct csi2tx_priv *csi2tx, return PTR_ERR(csi2tx->esc_clk); } - clk_prepare_enable(csi2tx->p_clk); + ret = clk_prepare_enable(csi2tx->p_clk); + if (ret) { + dev_err(&pdev->dev, "Couldn't prepare and enable p_clk\n"); + return ret; + } + dev_cfg = readl(csi2tx->base + CSI2TX_DEVICE_CONFIG_REG); clk_disable_unprepare(csi2tx->p_clk); _______________________________________________ linuxtv-commits mailing list [email protected] https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
