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Commit 4e36a8ad authored by Arvind Yadav's avatar Arvind Yadav Committed by Jonathan Cameron
Browse files

iio: Aspeed ADC - Handle return value of clk_prepare_enable 



clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: default avatarArvind Yadav <arvind.yadav.cs@gmail.com>
Reviewed-by: default avatarRick Altherr <raltherr@google.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 440d303c

drivers/iio/adc/aspeed_adc.c

+5 −1
Original line number Diff line number Diff line
@@ -212,7 +212,10 @@ static int aspeed_adc_probe(struct platform_device *pdev) 
	}



	/* Start all channels in normal mode. */

	clk_prepare_enable(data->clk_scaler->clk);

	ret = clk_prepare_enable(data->clk_scaler->clk);

	if (ret)

		goto clk_enable_error;



	adc_engine_control_reg_val = GENMASK(31, 16) |

		ASPEED_OPERATION_MODE_NORMAL | ASPEED_ENGINE_ENABLE;

	writel(adc_engine_control_reg_val,
@@ -236,6 +239,7 @@ static int aspeed_adc_probe(struct platform_device *pdev) 
	writel(ASPEED_OPERATION_MODE_POWER_DOWN,

		data->base + ASPEED_REG_ENGINE_CONTROL);

	clk_disable_unprepare(data->clk_scaler->clk);

clk_enable_error:

	clk_hw_unregister_divider(data->clk_scaler);



scaler_error: