This is a note to let you know that I've just added the patch titled
usb: ehci-mxc: check for pdata before dereferencing
to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-next branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will also be merged in the next major kernel release
during the merge window.
If you have any questions about this process, please let me know.
>From f375fc520d4df0cd9fcb570f33c103c6c0311f9e Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@xxxxxxxxx>
Date: Wed, 21 Aug 2013 11:17:21 +0200
Subject: usb: ehci-mxc: check for pdata before dereferencing
Commit 7e8d5cd93fac ("USB: Add EHCI support for MX27 and MX31 based
boards") introduced code that could potentially lead to a NULL pointer
dereference on driver removal.
Fix this by checking for the value of pdata before dereferencing it.
Signed-off-by: Daniel Mack <zonque@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx> # 2.6.33+
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/ehci-mxc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index 5899ad66..0528dc45 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -184,7 +184,7 @@ static int ehci_mxc_drv_remove(struct platform_device *pdev)
if (pdata && pdata->exit)
pdata->exit(pdev);
- if (pdata->otg)
+ if (pdata && pdata->otg)
usb_phy_shutdown(pdata->otg);
clk_disable_unprepare(priv->usbclk);
--
1.8.3.rc0.20.gb99dd2e
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