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authorJiri Kosina <jkosina@suse.cz>2011-05-18 19:06:31 +0400
committerJiri Kosina <jkosina@suse.cz>2011-05-18 19:06:49 +0400
commit6b7b8e488bbdedeccabdd001a78ffcbe43bb8a3a (patch)
treef2f77cc31b4548745778fca6a51b09e1d8a49804 /arch/blackfin/kernel/time-ts.c
parentb50f315cbb865079a16a12fd9ae6083f98fd592c (diff)
parentc1d10d18c542278b7fbc413c289d3cb6219da6b3 (diff)
downloadlinux-6b7b8e488bbdedeccabdd001a78ffcbe43bb8a3a.tar.xz
Merge branch 'master' into upstream.
This is sync with Linus' tree to receive KEY_IMAGES definition that went in through input tree.
Diffstat (limited to 'arch/blackfin/kernel/time-ts.c')
-rw-r--r--arch/blackfin/kernel/time-ts.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/blackfin/kernel/time-ts.c b/arch/blackfin/kernel/time-ts.c
index 8c9a43daf80f..cdb4beb6bc8f 100644
--- a/arch/blackfin/kernel/time-ts.c
+++ b/arch/blackfin/kernel/time-ts.c
@@ -206,8 +206,14 @@ irqreturn_t bfin_gptmr0_interrupt(int irq, void *dev_id)
{
struct clock_event_device *evt = dev_id;
smp_mb();
- evt->event_handler(evt);
+ /*
+ * We want to ACK before we handle so that we can handle smaller timer
+ * intervals. This way if the timer expires again while we're handling
+ * things, we're more likely to see that 2nd int rather than swallowing
+ * it by ACKing the int at the end of this handler.
+ */
bfin_gptmr0_ack();
+ evt->event_handler(evt);
return IRQ_HANDLED;
}