tty: Remove sparse lock annotations from tty_write_lock()/_unlock()
authorPeter Hurley <peter@hurleysoftware.com>
Thu, 16 Oct 2014 18:19:49 +0000 (14:19 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 6 Nov 2014 00:15:43 +0000 (16:15 -0800)
commit369e2b84e4eed08e5368abc3bc4277d500a186ea
tree10e8cb160da1253528b709d965b9ec379df39d7b
parent91f189de4640a6531a00fbc6a6c6adc7804af1e9
tty: Remove sparse lock annotations from tty_write_lock()/_unlock()

sparse lock annotations cannot represent conditional acquire, such
as mutex_lock_interruptible() or mutex_trylock(), and produce sparse
warnings at _every_ correct call site.

Remove lock annotations from tty_write_lock() and tty_write_unlock().

Fixes sparse warnings:
drivers/tty/tty_io.c:1083:13: warning: context imbalance in 'tty_write_unlock' - wrong count at exit
drivers/tty/tty_io.c:1090:12: warning: context imbalance in 'tty_write_lock' - wrong count at exit
drivers/tty/tty_io.c:1211:17: warning: context imbalance in 'tty_write_message' - unexpected unlock
drivers/tty/tty_io.c:1233:16: warning: context imbalance in 'tty_write' - different lock contexts for basic block
drivers/tty/tty_io.c:1285:5: warning: context imbalance in 'tty_send_xchar' - different lock contexts for basic block
drivers/tty/tty_io.c:2653:12: warning: context imbalance in 'send_break' - different lock contexts for basic block

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/tty_io.c