---

yaml --- r: 299587 b: refs/heads/master c: 3027691 h: refs/heads/master i: 299585: 57a0b0a 299583: 1edab61 v: v3
git-mirror · Apr 23, 2012 · c8dea08 · c8dea08
1 parent 25ac2d7
commit c8dea08
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2ef822c55371b20548d4f58193c580407a5d738d
+refs/heads/master: 3027691e58bfb21f6ea2e9f1d225d11b4e2b20e2
diff --git a/trunk/arch/powerpc/platforms/powermac/low_i2c.c b/trunk/arch/powerpc/platforms/powermac/low_i2c.c
@@ -366,11 +366,20 @@ static void kw_i2c_timeout(unsigned long data)
 	unsigned long flags;
 
 	spin_lock_irqsave(&host->lock, flags);
+
+	/*
+	 * If the timer is pending, that means we raced with the
+	 * irq, in which case we just return
+	 */
+	if (timer_pending(&host->timeout_timer))
+		goto skip;
+
 	kw_i2c_handle_interrupt(host, kw_read_reg(reg_isr));
 	if (host->state != state_idle) {
 		host->timeout_timer.expires = jiffies + KW_POLL_TIMEOUT;
 		add_timer(&host->timeout_timer);
 	}
+ skip:
 	spin_unlock_irqrestore(&host->lock, flags);
 }