From: Dejin Zheng <zhengdejin5@gmail.com>
Date: Mon, 4 May 2020 08:34:42 +0000 (+0800)
Subject: rtw88: fix an issue about leak system resources
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=191f6b08bfef24e1a9641eaac96ed030a7be4599;p=linux.git

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>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200504083442.3033-1-zhengdejin5@gmail.com
---

diff --git a/drivers/net/wireless/realtek/rtw88/pci.c b/drivers/net/wireless/realtek/rtw88/pci.c
index 8a8d746d33494..b9a5868a5da02 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;
 	}