allwiner: modclk: Do not try to enable parent clock if it doesn't exist

2017-08-02 20:17:04 +00:00 · 2017-08-02 20:17:04 +00:00 · 1c0c749e31
commit 1c0c749e31
parent a4105c1b53
1 changed files with 4 additions and 1 deletions
--- a/sys/arm/allwinner/clk/aw_modclk.c
+++ b/sys/arm/allwinner/clk/aw_modclk.c
@ -89,7 +89,10 @@ aw_modclk_init(struct clknode *clk, device_t dev)

 	index = (val & CLK_SRC_SEL) >> CLK_SRC_SEL_SHIFT;

-	clknode_init_parent_idx(clk, index);
+	if (index <= clknode_get_parents_num(clk))
+		clknode_init_parent_idx(clk, index);
+	else
+		clknode_init_parent_idx(clk, 0);
 	return (0);
 }