6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiasheng Jiang <jiashengjiangcool@xxxxxxxxx>
[ Upstream commit 125ad1aeec77eb55273b420be6894b284a01e4b6 ]
Add check for the return value of clk_enable() to gurantee the success.
Fixes: b5f1220d587d ("[media] v4l: Add v4l2 subdev driver for S5P/EXYNOS4 MIPI-CSI receivers")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@xxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/media/platform/samsung/exynos4-is/mipi-csis.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c
index 686ca8753ba22..87c6fb88ab920 100644
--- a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c
+++ b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c
@@ -940,13 +940,19 @@ static int s5pcsis_pm_resume(struct device *dev, bool runtime)
state->supplies);
goto unlock;
}
- clk_enable(state->clock[CSIS_CLK_GATE]);
+ ret = clk_enable(state->clock[CSIS_CLK_GATE]);
+ if (ret) {
+ phy_power_off(state->phy);
+ regulator_bulk_disable(CSIS_NUM_SUPPLIES,
+ state->supplies);
+ goto unlock;
+ }
}
if (state->flags & ST_STREAMING)
s5pcsis_start_stream(state);
state->flags &= ~ST_SUSPENDED;
- unlock:
+unlock:
mutex_unlock(&state->lock);
return ret ? -EAGAIN : 0;
}
--
2.39.5
