---

yaml --- r: 204713 b: refs/heads/master c: 0e37d25 h: refs/heads/master i: 204711: 91f0190 v: v3
git-mirror · Jul 9, 2010 · 4d3d012 · 4d3d012
1 parent 2fe24c1
commit 4d3d012
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 89c81797d4a0779a957f4ea1f0c676cda203615b
+refs/heads/master: 0e37d25950f4fd5a7d74723e6ce608aaa972d24c
diff --git a/trunk/arch/powerpc/kernel/dbell.c b/trunk/arch/powerpc/kernel/dbell.c
@@ -16,6 +16,7 @@
 #include <linux/percpu.h>
 
 #include <asm/dbell.h>
+#include <asm/irq_regs.h>
 
 #ifdef CONFIG_SMP
 struct doorbell_cpu_info {
@@ -63,17 +64,21 @@ void doorbell_message_pass(int target, int msg)
 
 void doorbell_exception(struct pt_regs *regs)
 {
+	struct pt_regs *old_regs = set_irq_regs(regs);
 	struct doorbell_cpu_info *info = &__get_cpu_var(doorbell_cpu_info);
 	int msg;
 
 	/* Warning: regs can be NULL when called from irq enable */
 
 	if (!info->messages || (num_online_cpus() < 2))
-		return;
+		goto out;
 
 	for (msg = 0; msg < 4; msg++)
 		if (test_and_clear_bit(msg, &info->messages))
 			smp_message_recv(msg);
+
+out:
+	set_irq_regs(old_regs);
 }
 
 #else /* CONFIG_SMP */