thermal/drivers/exynos: Fix an error code in exynos_tmu_probe()

This error path return success but it should propagate the negative
error code from devm_clk_get().

Fixes: 6c24739 ("thermal: exynos: Add TMU support for Exynos7 SoC")
Signed-off-by: Dan Carpenter <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Daniel Lezcano <[email protected]>
Link: https://lore.kernel.org/r/20210810084413.GA23810@kili

Author: Dan Carpenter

drivers/thermal/samsung/exynos_tmu.c

@@ -1073,6 +1073,7 @@ static int exynos_tmu_probe(struct platform_device *pdev)
 		data->sclk = devm_clk_get(&pdev->dev, "tmu_sclk");
 		if (IS_ERR(data->sclk)) {
 			dev_err(&pdev->dev, "Failed to get sclk\n");
+			ret = PTR_ERR(data->sclk);
 			goto err_clk;
 		} else {
 			ret = clk_prepare_enable(data->sclk);