clk: qcom: Return correct error code in qcom_cc_probe_by_index()

When devm_platform_ioremap_resource() fails, it returns various
error codes. Returning a hardcoded -ENOMEM masks the actual
failure reason.

Use PTR_ERR() to propagate the actual error code returned by
devm_platform_ioremap_resource() instead of -ENOMEM.

Fixes: 75e0a1e ("clk: qcom: define probe by index API as common API")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251217041338.2432-1-vulab@iscas.ac.cn
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Author: ISCAS-Vulab

drivers/clk/qcom/common.c

@@ -454,7 +454,7 @@ int qcom_cc_probe_by_index(struct platform_device *pdev, int index,
 
 	base = devm_platform_ioremap_resource(pdev, index);
 	if (IS_ERR(base))
-		return -ENOMEM;
+		return PTR_ERR(base);
 
 	regmap = devm_regmap_init_mmio(&pdev->dev, base, desc->config);
 	if (IS_ERR(regmap))