From a18097b7676bf5fb2677bf5e6cc24e721d7c2596 Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Tue, 18 Jul 2017 12:17:29 +0200 Subject: MIPS: ralink: allow NULL clock for clk_get_rate 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") Reported-by: Mathias Kresin Signed-off-by: Jonas Gorski Cc: John Crispin Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/16778/ Signed-off-by: Ralf Baechle --- arch/mips/ralink/clk.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/mips/ralink/clk.c') 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); -- cgit v1.2.3