3.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Daniel Mack <zonque@xxxxxxxxx>
commit f375fc520d4df0cd9fcb570f33c103c6c0311f9e upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/ehci-mxc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -298,7 +298,7 @@ static int __exit ehci_mxc_drv_remove(st
if (pdata && pdata->exit)
pdata->exit(pdev);
- if (pdata->otg)
+ if (pdata && pdata->otg)
usb_phy_shutdown(pdata->otg);
usb_remove_hcd(hcd);
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html