On Sun, Jan 05, 2025 at 01:57:51PM +0800, kingdix10@xxxxxx wrote:
> From: King Dix <kingdix10@xxxxxx>
>
> When using devm_request_mem_region to request a resource, if the passed
> variable is a stack string variable, it will lead to an oops issue when
> eecuting the command cat /proc/iomem.
>
Is this your observation or you saw the oops? If the latter, please include
the relevant log snippet for reference.
> Fix this by replacing outbound_name with the name of the previously
> requested resource.
>
> Signed-off-by: King Dix <kingdix10@xxxxxx>
Also, please do not send next version as a reply to the previous one.
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
- Mani
> ---
> Changes in v2:
> - Fix the code indentation issue.
> ---
> drivers/pci/controller/pcie-rcar-ep.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/controller/pcie-rcar-ep.c b/drivers/pci/controller/pcie-rcar-ep.c
> index 047e2cef5afc..c5e0d025bc43 100644
> --- a/drivers/pci/controller/pcie-rcar-ep.c
> +++ b/drivers/pci/controller/pcie-rcar-ep.c
> @@ -107,7 +107,7 @@ static int rcar_pcie_parse_outbound_ranges(struct rcar_pcie_endpoint *ep,
> }
> if (!devm_request_mem_region(&pdev->dev, res->start,
> resource_size(res),
> - outbound_name)) {
> + res->name)) {
> dev_err(pcie->dev, "Cannot request memory region %s.\n",
> outbound_name);
> return -EIO;
> --
> 2.43.0
>
--
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