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: 3f0a06b0368d ("MIPS: ralink: adds clkdev code")
Cc: John Crispin <john@xxxxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Reported-by: Mathias Kresin <dev@xxxxxxxxx>
Signed-off-by: Jonas Gorski <jonas.gorski@xxxxxxxxx>
---
arch/mips/ralink/clk.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/mips/ralink/clk.c b/arch/mips/ralink/clk.c
index eb1c61917eb7..1b7df115eb60 100644
--- a/arch/mips/ralink/clk.c
+++ b/arch/mips/ralink/clk.c
@@ -53,6 +53,9 @@ EXPORT_SYMBOL_GPL(clk_disable);
unsigned long clk_get_rate(struct clk *clk)
{
+ if (!clk)
+ return 0;
+
return clk->rate;
}
EXPORT_SYMBOL_GPL(clk_get_rate);
--
2.11.0
