[PATCH net v1] net: rtw88: fix an issue about leak system resources

[PATCH net v1] net: rtw88: fix an issue about leak system resources

[Dejin Zheng]

the related system resources were not released when pci_iomap() return
error in the rtw_pci_io_mapping() function. add pci_release_regions() to
fix it.

Fixes: e3037485c68ec1a ("rtw88: new Realtek 802.11ac driver")
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
---
 drivers/net/wireless/realtek/rtw88/pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/realtek/rtw88/pci.c b/drivers/net/wireless/realtek/rtw88/pci.c
index 695c2c0d64b0..a9752c34c9d8 100644
--- a/drivers/net/wireless/realtek/rtw88/pci.c
+++ b/drivers/net/wireless/realtek/rtw88/pci.c
@@ -1102,6 +1102,7 @@ static int rtw_pci_io_mapping(struct rtw_dev *rtwdev,
 	len = pci_resource_len(pdev, bar_id);
 	rtwpci->mmap = pci_iomap(pdev, bar_id, len);
 	if (!rtwpci->mmap) {
+		pci_release_regions(pdev);
 		rtw_err(rtwdev, "failed to map pci memory\n");
 		return -ENOMEM;
 	}
-- 
2.25.0

RE: [PATCH net v1] net: rtw88: fix an issue about leak system resources

[Tony Chuang]

> Subject: [PATCH net v1] net: rtw88: fix an issue about leak system resources
> 
> the related system resources were not released when pci_iomap() return
> error in the rtw_pci_io_mapping() function. add pci_release_regions() to
> fix it.
> 
> Fixes: e3037485c68ec1a ("rtw88: new Realtek 802.11ac driver")
> Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
> Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Acked-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
> ---
>  drivers/net/wireless/realtek/rtw88/pci.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/wireless/realtek/rtw88/pci.c
> b/drivers/net/wireless/realtek/rtw88/pci.c
> index 695c2c0d64b0..a9752c34c9d8 100644
> --- a/drivers/net/wireless/realtek/rtw88/pci.c
> +++ b/drivers/net/wireless/realtek/rtw88/pci.c
> @@ -1102,6 +1102,7 @@ static int rtw_pci_io_mapping(struct rtw_dev
> *rtwdev,
>  	len = pci_resource_len(pdev, bar_id);
>  	rtwpci->mmap = pci_iomap(pdev, bar_id, len);
>  	if (!rtwpci->mmap) {
> +		pci_release_regions(pdev);
>  		rtw_err(rtwdev, "failed to map pci memory\n");
>  		return -ENOMEM;
>  	}
> --
> 2.25.0

Re: [PATCH net v1] rtw88: fix an issue about leak system resources

[Kalle Valo]

Dejin Zheng <zhengdejin5@gmail.com> wrote:

> the related system resources were not released when pci_iomap() return
> error in the rtw_pci_io_mapping() function. add pci_release_regions() to
> fix it.
> 
> Fixes: e3037485c68ec1a ("rtw88: new Realtek 802.11ac driver")
> Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
> Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
> Acked-by: Yan-Hsuan Chuang <yhchuang@realtek.com>

Patch applied to wireless-drivers-next.git, thanks.

191f6b08bfef rtw88: fix an issue about leak system resources

-- 
https://patchwork.kernel.org/patch/11525207/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches