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Subject[PATCH] clk: Warn about critical clks that fail to enable
If we don't warn here users of the CLK_IS_CRITICAL flag may not know
that their clk isn't actually enabled because it silently fails to
enable. Let's drop a big WARN_ON in that case so developers find these
problems faster.

Suggested-by: Jerome Brunet <>
Cc: Guenter Roeck <>
Signed-off-by: Stephen Boyd <>

I suspect that this may start warning for other users. Let's see
and revert in case it doesn't work.

drivers/clk/clk.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 772258de2d1f..6a9a66dfdeaa 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -3427,13 +3427,13 @@ static int __clk_core_init(struct clk_core *core)
unsigned long flags;

ret = clk_core_prepare(core);
- if (ret)
+ if (WARN_ON(ret))
goto out;

flags = clk_enable_lock();
ret = clk_core_enable(core);
- if (ret) {
+ if (WARN_ON(ret)) {
goto out;
base-commit: 12ead77432f2ce32dea797742316d15c5800cb32
Sent by a computer, using git, on the internet

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