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pwm: stm32: Add check for clk_enable()

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[ Upstream commit e8c59791ebb60790c74b2c3ab520f04a8a57219a ]

Add check for the return value of clk_enable() to catch the potential
error.

Fixes: 19f1016ea960 ("pwm: stm32: Fix enable count for clk in .probe()")
Signed-off-by: Mingwei Zheng <zmw12306@gmail.com>
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Link: https://lore.kernel.org/r/20241215224752.220318-1-zmw12306@gmail.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mingwei Zheng
2024-12-15 17:47:52 -05:00
committed by Greg Kroah-Hartman
parent b8e33f0a3c
commit c7efca80bd
1 changed files with 5 additions and 2 deletions
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7
drivers/pwm/pwm-stm32.c
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@@ -635,8 +635,11 @@ static int stm32_pwm_probe(struct platform_device *pdev)
priv->chip.npwm = stm32_pwm_detect_channels(priv, &num_enabled);
/* Initialize clock refcount to number of enabled PWM channels. */
for (i = 0; i < num_enabled; i++)
clk_enable(priv->clk);
for (i = 0; i < num_enabled; i++) {
ret = clk_enable(priv->clk);
if (ret)
return ret;
}
ret = devm_pwmchip_add(dev, &priv->chip);
if (ret < 0)