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author | Daniel Lezcano <daniel.lezcano@linaro.org> | 2016-06-06 21:29:30 (GMT) |
---|---|---|
committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2016-06-28 08:19:32 (GMT) |
commit | 86de9628230956aa976fe50f407a25bd268d8a68 (patch) | |
tree | c5f4bd1d8043c40846ae2655efbf107e2a0d56b9 /drivers | |
parent | 1ee078facfd4f26f516becd4c73a7e6a2e520965 (diff) | |
download | linux-86de9628230956aa976fe50f407a25bd268d8a68.tar.xz |
clocksource/drivers/versatile: Convert init function to return error
The init functions do not return any error. They behave as the following:
- panic, thus leading to a kernel crash while another timer may work and
make the system boot up correctly
or
- print an error and let the caller unaware if the state of the system
Change that by converting the init functions to return an error conforming
to the CLOCKSOURCE_OF_RET prototype.
Proper error handling (rollback, errno value) will be changed later case
by case, thus this change just return back an error or success in the init
function.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/clocksource/versatile.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/clocksource/versatile.c b/drivers/clocksource/versatile.c index 0a26d3d..8daeffa 100644 --- a/drivers/clocksource/versatile.c +++ b/drivers/clocksource/versatile.c @@ -25,18 +25,20 @@ static u64 notrace versatile_sys_24mhz_read(void) return readl(versatile_sys_24mhz); } -static void __init versatile_sched_clock_init(struct device_node *node) +static int __init versatile_sched_clock_init(struct device_node *node) { void __iomem *base = of_iomap(node, 0); if (!base) - return; + return -ENXIO; versatile_sys_24mhz = base + SYS_24MHZ; sched_clock_register(versatile_sys_24mhz_read, 32, 24000000); + + return 0; } -CLOCKSOURCE_OF_DECLARE(vexpress, "arm,vexpress-sysreg", +CLOCKSOURCE_OF_DECLARE_RET(vexpress, "arm,vexpress-sysreg", versatile_sched_clock_init); -CLOCKSOURCE_OF_DECLARE(versatile, "arm,versatile-sysreg", +CLOCKSOURCE_OF_DECLARE_RET(versatile, "arm,versatile-sysreg", versatile_sched_clock_init); |