From: Vivek Gautam <gautam.vivek@samsung.com>
Date: Tue, 9 Apr 2013 13:12:11 +0000 (+0530)
Subject: usb: ehci-s5p: fix: Fix null pointer dereferencing
X-Git-Tag: v3.10-rc1~190^2~51
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=bbcd85a0e624a6825e2b4477a5ad2a7873288809;p=~emulex%2Finfiniband.git

usb: ehci-s5p: fix: Fix null pointer dereferencing

7edb3da: (USB: EHCI: make ehci-s5p a separate driver)
raised an issue with ehci-s5p's driver data.
Now that 's5p_ehci_hcd' doesn't maintain pointer to 'usb_hcd'
and s5p_ehci is nothing but a pointer to hcd->priv;
add hcd to the driver data rather than s5p_ehci.

This fixes issues with null pointer dereferencing in
s5p_ehci_shutdown(), s5p_ehci_suspend(), s5p_ehci_resume().

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
CC: Manjunath Goudar <manjunath.goudar@linaro.org>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Jingoo Han <jg1.han@samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
index d8cb0ca563b..580548ad853 100644
--- a/drivers/usb/host/ehci-s5p.c
+++ b/drivers/usb/host/ehci-s5p.c
@@ -173,7 +173,7 @@ static int s5p_ehci_probe(struct platform_device *pdev)
 		goto fail_add_hcd;
 	}
 
-	platform_set_drvdata(pdev, s5p_ehci);
+	platform_set_drvdata(pdev, hcd);
 
 	return 0;