@@ -497,21 +497,19 @@ static int stm32_csi_start(struct stm32_csi_dev *csidev,
ret = pm_runtime_get_sync(csidev->dev);
if (ret < 0)
- return ret;
+ goto error_put;
/* Retrieve CSI2PHY clock rate to compute CCFR value */
phy_clk_frate = clk_get_rate(csidev->clks[STM32_CSI_CLK_CSI2PHY].clk);
if (!phy_clk_frate) {
- pm_runtime_put(csidev->dev);
dev_err(csidev->dev, "CSI2PHY clock rate invalid (0)\n");
- return ret;
+ ret = -EINVAL;
+ goto error_put;
}
ret = stm32_csi_setup_lane_merger(csidev);
- if (ret) {
- pm_runtime_put(csidev->dev);
- return ret;
- }
+ if (ret)
+ goto error_put;
/* Enable the CSI */
writel_relaxed(STM32_CSI_CR_CSIEN, csidev->base + STM32_CSI_CR);
@@ -567,6 +565,10 @@ static int stm32_csi_start(struct stm32_csi_dev *csidev,
writel_relaxed(0, csidev->base + STM32_CSI_PMCR);
return ret;
+
+error_put:
+ pm_runtime_put(csidev->dev);
+ return ret;
}
static void stm32_csi_stop(struct stm32_csi_dev *csidev)
Within the stm32_csi_start function, pm_runtime_put should be called upon error following pm_runtime_get_sync. Rework the function error handling by putting a label in order to have common error handling for all calls requiring pm_runtime_put. Signed-off-by: Alain Volmat <alain.volmat@foss.st.com> --- drivers/media/platform/st/stm32/stm32-csi.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-)