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Subject: media: v4l: cadence: Handle errors of clk_prepare_enable() Author: Evgeny Novikov <[email protected]> Date: Tue May 18 20:57:22 2021 +0200 Handle errors of clk_prepare_enable() in csi2rx_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-csi2rx.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) --- diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index c68a3eac62cd..f2b4ddd31177 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -282,6 +282,7 @@ static int csi2rx_get_resources(struct csi2rx_priv *csi2rx, struct resource *res; unsigned char i; u32 dev_cfg; + int ret; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); csi2rx->base = devm_ioremap_resource(&pdev->dev, res); @@ -315,7 +316,12 @@ static int csi2rx_get_resources(struct csi2rx_priv *csi2rx, return -EINVAL; } - clk_prepare_enable(csi2rx->p_clk); + ret = clk_prepare_enable(csi2rx->p_clk); + if (ret) { + dev_err(&pdev->dev, "Couldn't prepare and enable P clock\n"); + return ret; + } + dev_cfg = readl(csi2rx->base + CSI2RX_DEVICE_CFG_REG); clk_disable_unprepare(csi2rx->p_clk); _______________________________________________ linuxtv-commits mailing list [email protected] https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
