| Message ID | 1307635142-11312-2-git-send-email-will.deacon@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index ef59099..2bce3be 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -266,7 +266,7 @@ static void l2x0_disable(void) unsigned long flags; spin_lock_irqsave(&l2x0_lock, flags); - writel(0, l2x0_base + L2X0_CTRL); + writel_relaxed(0, l2x0_base + L2X0_CTRL); spin_unlock_irqrestore(&l2x0_lock, flags); }
The l2x0_disable function attempts to writel with the l2x0_lock held. This results in livelock when the writel contains an outer_sync call for the platform. This patch replaces the writel with a call to writel_relaxed in the disabling code, preventing livelock from occurring. Signed-off-by: Will Deacon <will.deacon@arm.com> --- arch/arm/mm/cache-l2x0.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)