[PATCH 02/19] clk: at91: clk-generated: check best_rate against ranges

Claudiu Beznea
2020-07-15T11:24:45Z

Check best_rate against available clock ranges.

Fixes: df70aeef6083 ("clk: at91: add generated clock driver")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
drivers/clk/at91/clk-generated.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/at91/clk-generated.c b/drivers/clk/at91/clk-generated.c
index 995a13133cfb..f8e557e0e1b8 100644
--- a/drivers/clk/at91/clk-generated.c
+++ b/drivers/clk/at91/clk-generated.c
@@ -185,8 +185,8 @@ static int clk_generated_determine_rate(struct clk_hw *hw,
__clk_get_name((req->best_parent_hw)->clk),
req->best_parent_rate);

- if (best_rate < 0)
- return best_rate;
+ if (best_rate < 0 || (gck->range.max && best_rate > gck->range.max))
+ return -EINVAL;

req->rate = best_rate;
return 0;
--
2.7.4