3.16.51-rc1 review patch. If anyone has any objections, please let me know.
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From: Jonas Gorski jonas.gorski@gmail.com
commit a18097b7676bf5fb2677bf5e6cc24e721d7c2596 upstream.
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 dev@kresin.me Signed-off-by: Jonas Gorski jonas.gorski@gmail.com Cc: John Crispin john@phrozen.org 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 ralf@linux-mips.org Signed-off-by: Ben Hutchings ben@decadent.org.uk --- arch/mips/ralink/clk.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/arch/mips/ralink/clk.c +++ b/arch/mips/ralink/clk.c @@ -52,6 +52,9 @@ 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);