From: Yulgon Kim <yulgon.kim@samsung.com>
Date: Thu, 18 Aug 2011 05:02:45 +0000 (+0900)
Subject: usb: s5p-ehci: fix a NULL pointer deference
X-Git-Tag: firefly_0821_release~7541^2~2854
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b942664bf67f1f0ce021b327bd37785835e5e6b6;p=firefly-linux-kernel-4.4.55.git

usb: s5p-ehci: fix a NULL pointer deference

commit e5d3d4463fb30998385f9e78ab3c7f63b5813000 upstream.

This patch fixes a NULL pointer deference. A NULL pointer
dereference happens since s5p_ehci->hcd field is not initialized
yet in probe function.

[jg1.han@samsung.com: edit commit message]
Signed-off-by: Yulgon Kim <yulgon.kim@samsung.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
index e3374c8f7b3f..491a209c9d2f 100644
--- a/drivers/usb/host/ehci-s5p.c
+++ b/drivers/usb/host/ehci-s5p.c
@@ -86,6 +86,7 @@ static int __devinit s5p_ehci_probe(struct platform_device *pdev)
 		goto fail_hcd;
 	}
 
+	s5p_ehci->hcd = hcd;
 	s5p_ehci->clk = clk_get(&pdev->dev, "usbhost");
 
 	if (IS_ERR(s5p_ehci->clk)) {