Make the behaviour of clk_get_rate consistent with common clk's
clk_get_rate by accepting NULL clocks as parameter. Some device
drivers rely on this, and will cause an OOPS otherwise.
Fixes: 1d81eedb8f6c ("[ARM] 3634/1: ep93xx: initial implementation of the clk_*
API")
Cc: Hartley Sweeten <[email protected]>
Cc: Alexander Sverdlin <[email protected]>
Cc: Russell King <[email protected]>
Cc: [email protected]
Cc: [email protected]
Reported-by: Mathias Kresin <[email protected]>
Signed-off-by: Jonas Gorski <[email protected]>
---
arch/arm/mach-ep93xx/clock.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
index 39ef3b613912..f0768befafe8 100644
--- a/arch/arm/mach-ep93xx/clock.c
+++ b/arch/arm/mach-ep93xx/clock.c
@@ -316,6 +316,9 @@ static unsigned long get_uart_rate(struct clk *clk)
unsigned long clk_get_rate(struct clk *clk)
{
+ if (!clk)
+ return 0;
+
if (clk->get_rate)
return clk->get_rate(clk);
--
2.11.0
