diff --git a/arch/arm/mach-imx/mm-imx5.c b/arch/arm/mach-imx/mm-imx5.c
index 05250aed61fbbc7f73f9e7b1c5b4bca00000f6fd..e10f3914fcfe6b1d2c59f9296d373805b4740901 100644
--- a/arch/arm/mach-imx/mm-imx5.c
+++ b/arch/arm/mach-imx/mm-imx5.c
@@ -35,7 +35,7 @@ static void imx5_idle(void)
 	}
 	clk_enable(gpc_dvfs_clk);
 	mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF);
-	if (tzic_enable_wake() != 0)
+	if (!tzic_enable_wake())
 		cpu_do_idle();
 	clk_disable(gpc_dvfs_clk);
 }