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Commit dab969c0 authored by Atsushi Nemoto's avatar Atsushi Nemoto Committed by Ralf Baechle
Browse files

[MIPS] time: Make c0_compare_int_usable more bullet proof 



Use write_c0_compare(read_c0_count()) to clear interrupt.

Signed-off-by: default avatarAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 17f690be

arch/mips/kernel/cevt-r4k.c

+2 −2
Original line number Diff line number Diff line
@@ -186,7 +186,7 @@ static int c0_compare_int_usable(void) 
	 * IP7 already pending?  Try to clear it by acking the timer.

	 */

	if (c0_compare_int_pending()) {

		write_c0_compare(read_c0_compare());

		write_c0_compare(read_c0_count());

		irq_disable_hazard();

		if (c0_compare_int_pending())

			return 0;
@@ -202,7 +202,7 @@ static int c0_compare_int_usable(void) 
	if (!c0_compare_int_pending())

		return 0;



	write_c0_compare(read_c0_compare());

	write_c0_compare(read_c0_count());

	irq_disable_hazard();

	if (c0_compare_int_pending())

		return 0;