Messages in this thread Patch in this message | | | From | Jonas Gorski <> | Subject | [PATCH 1/9] ARM: ep93xx: allow NULL clock for clk_get_rate | Date | Tue, 18 Jul 2017 12:17:22 +0200 |
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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: 1d81eedb8f6c ("[ARM] 3634/1: ep93xx: initial implementation of the clk_* API") Cc: Hartley Sweeten <hsweeten@visionengravers.com> Cc: Alexander Sverdlin <alexander.sverdlin@gmail.com> Cc: Russell King <linux@armlinux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Reported-by: Mathias Kresin <dev@kresin.me> Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> --- arch/arm/mach-ep93xx/clock.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c index 39ef3b613912..f0768befafe8 100644 --- a/arch/arm/mach-ep93xx/clock.c +++ b/arch/arm/mach-ep93xx/clock.c @@ -316,6 +316,9 @@ static unsigned long get_uart_rate(struct clk *clk) unsigned long clk_get_rate(struct clk *clk) { + if (!clk) + return 0; + if (clk->get_rate) return clk->get_rate(clk); -- 2.11.0
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