Make the behaviour of clk_get_rate consistent with common clk's clk_get_rate by accepting NULL clocks as parameter, as some device drivers rely on this.
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: f8ede0f700f5 ("MIPS: Loongson 2F: Add CPU frequency scaling support") Cc: Ralf Baechle <r...@linux-mips.org> Cc: linux-m...@linux-mips.org Cc: linux-kernel@vger.kernel.org Reported-by: Mathias Kresin <d...@kresin.me> Signed-off-by: Jonas Gorski <jonas.gor...@gmail.com> --- arch/mips/loongson64/lemote-2f/clock.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/loongson64/lemote-2f/clock.c b/arch/mips/loongson64/lemote-2f/clock.c index a78fb657068c..8281334df9c8 100644 --- a/arch/mips/loongson64/lemote-2f/clock.c +++ b/arch/mips/loongson64/lemote-2f/clock.c @@ -80,6 +80,9 @@ EXPORT_SYMBOL(clk_disable); unsigned long clk_get_rate(struct clk *clk) { + if (!clk) + return 0; + return (unsigned long)clk->rate; } EXPORT_SYMBOL(clk_get_rate); -- 2.11.0