tree 277dc759b7ae9161ca7859437266c521e4cc5d85
parent ffca2b114c6a804d1307781df687e877a373a1c2
author Russell King <rmk+kernel@arm.linux.org.uk> 1293038169 +0000
committer Russell King <rmk+kernel@arm.linux.org.uk> 1294246727 +0000

ARM: PL011: Ensure IRQs are disabled in UART interrupt handler

As the DMA support introduces a separate interrupt-time callback, our
interrupt handler will not be the only handler which takes the port
lock, so we need to ensure that IRQs are disabled.  We must use the
_irqsave variant so we don't inadvertently enable interrupts.

Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>