tree 8999cd827e7fb4138ff83f7829d8fdcf44ee653d
parent 01294d82622d6d9d64bde8e4530c7e2c6dbb6ee6
author Grant Likely <grant.likely@secretlab.ca> 1305739164 -0600
committer Grant Likely <grant.likely@secretlab.ca> 1305743543 -0600

drivercore: revert addition of of_match to struct device

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@secretlab.ca>