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 <[email protected]> --- 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
