From: Stuart Menefy <stuart.menefy@mathembedded.com>
Date: Mon, 28 Jan 2019 23:06:45 +0000 (+0000)
Subject: ARM: exynos: Fix timeout when booting secondary CPUs
X-Git-Tag: v5.1-rc1~158^2~6^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4bdf2f3f20a9de9b07f97907820c42f3a49ba63d;p=thirdparty%2Flinux.git

ARM: exynos: Fix timeout when booting secondary CPUs

Without this fix the loop waiting for the timeout exits, but the
subsequent test to see if the timeout occurred fails.

Signed-off-by: Stuart Menefy <stuart.menefy@mathembedded.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---

diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index c39ffd2e2fe69..b6da7edbbd2fd 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -336,9 +336,9 @@ static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle)
 		/* wait max 10 ms until cpu1 is on */
 		while (exynos_cpu_power_state(core_id)
 		       != S5P_CORE_LOCAL_PWR_EN) {
-			if (timeout-- == 0)
+			if (timeout == 0)
 				break;
-
+			timeout--;
 			mdelay(1);
 		}