Re: [PATCH 2/2] drivercore: revert addition of of_match to structdevice

From: Greg KH
Date: Wed May 18 2011 - 16:00:36 EST

On Wed, May 18, 2011 at 01:21:05PM -0600, Grant Likely wrote:
> Commit b826291c, "drivercore/dt: add a match table pointer to struct
> device" added an of_match pointer to struct device to cache the
> of_match_table entry discovered at driver match time. This was unsafe
> because matching is not an atomic operation with probing a driver. If
> two or more drivers are attempted to be matched to a driver at the
> same time, then the cached matching entry pointer could get
> overwritten.
> This patch reverts the of_match cache pointer and reworks all users to
> call of_match_device() directly instead.
> Signed-off-by: Grant Likely <grant.likely@xxxxxxxxxxxx>

Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
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