From fdca679d87bb4ac0fdc882dbf3deb47a1f58b813 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 20 Nov 2013 09:58:56 +0100 Subject: clocksource: clksrc-of: Warn if no clock sources are found Many platforms rely on clocksource_of_init() being implicitly called for registering clock sources and will get zero warnings if no working clock source is available. Let's print a critical error message if no clock source is found. Acked-by: Lee Jones Signed-off-by: Linus Walleij Signed-off-by: Daniel Lezcano --- drivers/clocksource/clksrc-of.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/clocksource') diff --git a/drivers/clocksource/clksrc-of.c b/drivers/clocksource/clksrc-of.c index 35639cf4e5a..a30b42c3ac3 100644 --- a/drivers/clocksource/clksrc-of.c +++ b/drivers/clocksource/clksrc-of.c @@ -28,6 +28,7 @@ void __init clocksource_of_init(void) struct device_node *np; const struct of_device_id *match; clocksource_of_init_fn init_func; + unsigned clocksources = 0; for_each_matching_node_and_match(np, __clksrc_of_table, &match) { if (!of_device_is_available(np)) @@ -36,5 +37,8 @@ void __init clocksource_of_init(void) init_func = match->data; init_func(np); of_node_put(np); + clocksources++; } + if (!clocksources) + pr_crit("%s: no matching clocksources found\n", __func__); } -- cgit v1.2.3-70-g09d2