Handle errors of clk_prepare_enable() in csi2rx_get_resources().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Evgeny Novikov <novikov@xxxxxxxxx>
---
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);
--
2.26.2
