[lkml]   [2011]   [May]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 2/2] drivercore: revert addition of of_match to struct device
From: Grant Likely <>
Date: Wed, 18 May 2011 13:21:05 -0600

> 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 <>

Tested on SunBlade2500 and Niagara2+

Acked-by: David S. Miller <>

 \ /
  Last update: 2011-05-18 23:07    [W:0.040 / U:0.688 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site