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: 49cbe78637eb ("[ARM] pxa: add base support for Marvell's PXA168
processor line")
Cc: Eric Miao <[email protected]>
Cc: Haojian Zhuang <[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-mmp/clock.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-mmp/clock.c b/arch/arm/mach-mmp/clock.c
index 28fe64c6e2f5..bdfb113431ec 100644
--- a/arch/arm/mach-mmp/clock.c
+++ b/arch/arm/mach-mmp/clock.c
@@ -83,7 +83,9 @@ unsigned long clk_get_rate(struct clk *clk)
{
unsigned long rate;
- if (clk->ops->getrate)
+ if (!clk)
+ rate = 0;
+ else if (clk->ops->getrate)
rate = clk->ops->getrate(clk);
else
rate = clk->rate;
--
2.11.0
