From: Tony Lindgren <tony@atomide.com>
Date: Tue, 7 Aug 2007 12:20:00 +0000 (-0700)
Subject: ARM: OMAP: Warn on disabling clocks with no users
X-Git-Tag: v2.6.26-rc3~20^2^2~8
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=7cf95774190e423370945e116b07410c860407db;p=linux-2.6-omap-h63xx.git

ARM: OMAP: Warn on disabling clocks with no users

Instead of BUG(), warn on disabling clocks with no users.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---

diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index 72d34a23a2e..2946c193a7d 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -134,9 +134,17 @@ void clk_disable(struct clk *clk)
 		return;
 
 	spin_lock_irqsave(&clockfw_lock, flags);
-	BUG_ON(clk->usecount == 0);
+	if (clk->usecount == 0) {
+		printk(KERN_ERR "Trying disable clock %s with 0 usecount\n",
+		       clk->name);
+		WARN_ON(1);
+		goto out;
+	}
+
 	if (arch_clock->clk_disable)
 		arch_clock->clk_disable(clk);
+
+out:
 	spin_unlock_irqrestore(&clockfw_lock, flags);
 }
 EXPORT_SYMBOL(clk_disable);