From: Rajendra Nayak <rnayak@xxxxxx>
This patch avoids spinlocks being held when calling
blocking_notifier_chain_register().
Signed-off-by: Rajendra Nayak <rnayak@xxxxxx>
Signed-off-by: Tero Kristo <tero.kristo@xxxxxxxxx>
---
arch/arm/plat-omap/clock.c | 4 ++++
1 files changed, 4 insertions(+)
Index: linux-omap-pm/arch/arm/plat-omap/clock.c
===================================================================
--- linux-omap-pm.orig/arch/arm/plat-omap/clock.c 2009-03-20 17:11:54.000000000 +0530
+++ linux-omap-pm/arch/arm/plat-omap/clock.c 2009-03-20 19:14:35.387298482 +0530
@@ -673,7 +673,11 @@ int clk_notifier_register(struct clk *cl
kfree(cn_new); /* didn't need it after all */
}
+ spin_unlock_irqrestore(&clockfw_lock, flags);
+
r = blocking_notifier_chain_register(&cn->notifier_head, nb);
+
+ spin_lock_irqsave(&clockfw_lock, flags);
if (!r) {
clkp = clk;
do {--
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