linux-kernel - [PATCH v2] usb: host: pci_quirks: fix memory leak, by adding iounmap

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Date:	Wed,  2 Dec 2015 22:51:37 +0530
From:	Saurabh Sengar <saurabh.truth@...il.com>
To:	gregkh@...uxfoundation.org, mathias.nyman@...el.com,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	Saurabh Sengar <saurabh.truth@...il.com>
Subject: [PATCH v2] usb: host: pci_quirks: fix memory leak, by adding iounmap

added iounmap inorder to free memory mapped to base before returning

Signed-off-by: Saurabh Sengar <saurabh.truth@...il.com>
---
v2: changed logic a bit, because of recent patches pushed to usb-next
 drivers/usb/host/pci-quirks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 26cb8c8..2ac198c 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -992,7 +992,7 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
 	if ((ext_cap_offset + sizeof(val)) > len) {
 		/* We're reading garbage from the controller */
 		dev_warn(&pdev->dev, "xHCI controller failing to respond");
-		return;
+		goto hc_init;
 	}
 	val = readl(base + ext_cap_offset);
 
-- 
1.9.1

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