sh: clkfwk: Handle NULL clkops for root clocks.
root clocks may simply be placeholders for rate and ancestry information,
and have no real associated operations of their own. Account for this,
so we are still able to use these sorts of clocks for rate propagation.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c
index 0eedf93..2ced20f 100644
--- a/arch/sh/kernel/cpu/clock.c
+++ b/arch/sh/kernel/cpu/clock.c
@@ -103,7 +103,7 @@
struct clk *clkp;
list_for_each_entry(clkp, &tclk->children, sibling) {
- if (clkp->ops->recalc)
+ if (clkp->ops && clkp->ops->recalc)
clkp->rate = clkp->ops->recalc(clkp);
propagate_rate(clkp);
}
@@ -196,7 +196,7 @@
struct clk *clkp;
list_for_each_entry(clkp, &root_clks, sibling) {
- if (clkp->ops->recalc)
+ if (clkp->ops && clkp->ops->recalc)
clkp->rate = clkp->ops->recalc(clkp);
propagate_rate(clkp);
}
@@ -224,7 +224,7 @@
list_add(&clk->sibling, &root_clks);
list_add(&clk->node, &clock_list);
- if (clk->ops->init)
+ if (clk->ops && clk->ops->init)
clk->ops->init(clk);
mutex_unlock(&clock_list_sem);