@@ -26,6 +26,8 @@
static struct clk *usb20_clk;
+static struct da8xx_usb_phy_platform_data da8xx_usb_phy_pdata;
+
static struct platform_device da8xx_usb_phy = {
.name = "da8xx-usb-phy",
.id = -1,
@@ -37,14 +39,14 @@ static struct platform_device da8xx_usb_phy = {
*/
.init_name = "da8xx-usb-phy",
},
+ .dev = {
+ .platform_data = &da8xx_usb_phy_pdata,
+ },
};
int __init da8xx_register_usb_phy(void)
{
- struct da8xx_usb_phy_platform_data pdata;
-
- pdata.cfgchip = da8xx_get_cfgchip();
- da8xx_usb_phy.dev.platform_data = &pdata;
+ da8xx_usb_phy_pdata.cfgchip = da8xx_get_cfgchip();
return platform_device_register(&da8xx_usb_phy);
}
This fixes a possible kernel oops due to using stack allocated platform data for the USB PHY driver on DA8XX devices. If the platform device probe is deferred, then we get a corrupt pointer for the platform data. We now use a global static struct for the platform data so that the platform data pointer does not get written over. Fixes: 9b504750923cb ("ARM: davinci: da8xx: Add USB PHY platform device") Signed-off-by: David Lechner <david@lechnology.com> --- arch/arm/mach-davinci/usb-da8xx.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)