Re: [PATCH] ARM: davinci: DA8XX: fix oops in USB PHY driver due to stack allocated platform platform_data

From: David Lechner
Date: Thu Mar 15 2018 - 15:15:28 EST


On 03/15/2018 01:02 PM, David Lechner wrote:
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.

Tested on OMAP-L138 LCDK board using legacy board file.

Fixes: 9b504750923cb ("ARM: davinci: da8xx: Add USB PHY platform device")
Signed-off-by: David Lechner <david@xxxxxxxxxxxxxx>
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superseded by v2 that applies cleanly before common clock series