imx: WARN in clk_disable if the clock isn't enabled

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/arm/plat-mxc/clock.c b/arch/arm/plat-mxc/clock.c
index 9e8fbd57495c..323ff8ccc877 100644
--- a/arch/arm/plat-mxc/clock.c
+++ b/arch/arm/plat-mxc/clock.c
@@ -56,6 +56,7 @@ static void __clk_disable(struct clk *clk)
         __clk_disable(clk->parent);
         __clk_disable(clk->secondary);
 
+        WARN_ON(!clk->usecount);
         if (!(--clk->usecount) && clk->disable)
                 clk->disable(clk);
 }