Messages in this thread Patch in this message | | | From | Wang Qing <> | Subject | [PATCH] arm: Add clk_get_rate input parameter null check | Date | Fri, 6 Nov 2020 09:46:15 +0800 |
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The input parameter of clk_get_rate() is checked with IS_ERR(), so here we need to check null on clk.
Signed-off-by: Wang Qing <wangqing@vivo.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 2810eb5..4313b2f --- a/arch/arm/mach-ep93xx/clock.c +++ b/arch/arm/mach-ep93xx/clock.c @@ -321,6 +321,9 @@ 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); -- 2.7.4
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