lkml.org 
[lkml]   [2022]   [Mar]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectRe: [PATCH] PCI: dwc: solve returning success but actually failed
On Fri, Mar 04, 2022 at 12:06:10PM +0000, Zhangjiantao(Kirin,Nanjing) wrote:
> When dma_mapping_error returns error because of no enough memory available, dw_pcie_host_init will return success, which will mislead the callers.

Wrap to fit in 75 columns, add "()" after function names.
>
> Signed-off-by: zhangjianrong <zhangjianrong5@huawei.com>
> Signed-off-by: zhangjiantao <water.zhangjiantao@huawei.com>
>
> ---
>  drivers/pci/controller/dwc/pcie-designware-host.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c
> b/drivers/pci/controller/dwc/pcie-designware-host.c
> index f4755f3a03be..ac691d733848 100644
> --- a/drivers/pci/controller/dwc/pcie-designware-host.c
> +++ b/drivers/pci/controller/dwc/pcie-designware-host.c
> @@ -393,6 +393,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
>              if (dma_mapping_error(pci->dev, pp->msi_data)) {
>                  dev_err(pci->dev, "Failed to map MSI data\n");
>                  pp->msi_data = 0;
> +                ret = -1;

We should save the return value from dma_mapping_error() and return
*that*, not -1.

Whitespace error (indent with tabs, same as the surrounding code).

>                  goto err_free_msi;
>              }
>          }
> --
> 2.17.1
>

\
 
 \ /
  Last update: 2022-03-04 22:40    [W:0.349 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site