[PATCH] clocksource/drivers/exynos_mct: explicitly return 0 for shared timer

From: Krzysztof Kozlowski
Date: Mon Apr 03 2023 - 05:41:10 EST


For a shared timers, the mct_init_dt() should not initialize the clock
even with global comparator. This is not an error, thus the function
should simply return 0, not 'ret'.

This also fixes smatch warning:

drivers/clocksource/exynos_mct.c:635 mct_init_dt() warn: missing error code? 'ret'

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <error27@xxxxxxxxx>
Link: https://lore.kernel.org/r/202304021446.46XVKag0-lkp@xxxxxxxxx/
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
drivers/clocksource/exynos_mct.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index bfd60093ee1c..ef8cb1b71be4 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -677,17 +677,17 @@ static int __init mct_init_dt(struct device_node *np, unsigned int int_type)
if (ret)
return ret;

/*
* When the FRC is shared with a main processor, this secondary
* processor cannot use the global comparator.
*/
if (frc_shared)
- return ret;
+ return 0;

return exynos4_clockevent_init();
}


static int __init mct_init_spi(struct device_node *np)
{
return mct_init_dt(np, MCT_INT_SPI);
--
2.34.1