[PATCH v2 1/5] ARM: EXYNOS: fix exynos_boot_secondary() return value on timeout

From: Bartlomiej Zolnierkiewicz
Date: Wed Mar 18 2015 - 09:11:09 EST


exynos_boot_secondary() can erroneously return 0 or -ENOSYS even
when waiting on pen_release being set to -1 timeouts. Fix it by
adjusting ret variable value to -ETIMEDOUT when necessary.

Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
---
arch/arm/mach-exynos/platsmp.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index a825bca..48f950d 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -337,6 +337,9 @@ static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle)
udelay(10);
}

+ if (pen_release != -1)
+ ret = -ETIMEDOUT;
+
/*
* now the secondary core is starting up let it run its
* calibrations, then wait for it to finish
--
1.8.2.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/