On Wed, Apr 23, 2025, Dan Carpenter wrote:
> There are two issues:
> 1) Return -EINVAL if platform_get_resource() fails. Don't return
> success.
> 2) The devm_ioremap() function doesn't return error pointers, it returns
> NULL. Update the check.
>
> Fixes: 1881a32fe14d ("usb: dwc3: qcom: Transition to flattened model")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> ---
> drivers/usb/dwc3/dwc3-qcom.c | 10 ++++++----
> 1 file changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
> index d512002e1e88..b63fcaf823aa 100644
> --- a/drivers/usb/dwc3/dwc3-qcom.c
> +++ b/drivers/usb/dwc3/dwc3-qcom.c
> @@ -740,15 +740,17 @@ static int dwc3_qcom_probe(struct platform_device *pdev)
> }
>
> r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - if (!r)
> + if (!r) {
> + ret = -EINVAL;
> goto clk_disable;
> + }
> res = *r;
> res.end = res.start + SDM845_QSCRATCH_BASE_OFFSET;
>
> qcom->qscratch_base = devm_ioremap(dev, res.end, SDM845_QSCRATCH_SIZE);
> - if (IS_ERR(qcom->qscratch_base)) {
> - dev_err(dev, "failed to map qscratch region: %pe\n", qcom->qscratch_base);
> - ret = PTR_ERR(qcom->qscratch_base);
> + if (!qcom->qscratch_base) {
> + dev_err(dev, "failed to map qscratch region\n");
> + ret = -ENOMEM;
> goto clk_disable;
> }
>
> --
> 2.47.2
>
Acked-by: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx>
Thanks,
Thinh
