Messages in this thread Patch in this message | | | From | Jonas Gorski <> | Subject | [PATCH 3/9] blackfin: bf609: allow NULL clock for clk_get_rate | Date | Tue, 18 Jul 2017 12:17:24 +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: 969003152aa9 ("blackfin: bf60x: add clock support") Cc: Steven Miao <realmz6@gmail.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: adi-buildroot-devel@lists.sourceforge.net Cc: linux-kernel@vger.kernel.org Reported-by: Mathias Kresin <dev@kresin.me> Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> --- arch/blackfin/mach-bf609/clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/blackfin/mach-bf609/clock.c b/arch/blackfin/mach-bf609/clock.c index 392a59b9a504..21a0ec18829f 100644 --- a/arch/blackfin/mach-bf609/clock.c +++ b/arch/blackfin/mach-bf609/clock.c @@ -109,7 +109,7 @@ EXPORT_SYMBOL(clk_disable); unsigned long clk_get_rate(struct clk *clk) { unsigned long ret = 0; - if (clk->ops && clk->ops->get_rate) + if (clk && clk->ops && clk->ops->get_rate) ret = clk->ops->get_rate(clk); return ret; } -- 2.11.0
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