[ARM] 5067/1: _raw_write_can_lock macro bugfix
authorsurinder <srplsnh@gmail.com>
Wed, 28 May 2008 08:51:16 +0000 (09:51 +0100)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Mon, 2 Jun 2008 12:44:17 +0000 (13:44 +0100)
commit1e5c594607778f551b729577b046ee5d9333cfb5
treed153988fa057faa33e747b94dbc73b5e9075c105
parentea6a7404da4b381b35bcec48338d376a3873ea46
[ARM] 5067/1: _raw_write_can_lock macro bugfix

The current __raw_write_can_lock macro tests whether the lock can be
locked by checking if it is equal to 0x80000000, whereas the lock
should be lockable if its value is 0 i.e. unlocked state is
represented by 0. Hence the macro should test the value of lock
against 0 and not 0x80000000.

Signed-off-by: Surinder Pal Singh <srplsnh@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
include/asm-arm/spinlock.h