[PATCH 2/6] clk: divider: add error code propagation

[Jules Maselbas]

divider_get_val can return a negative error code and should not be used
as a valid divider.

Signed-off-by: Jules Maselbas <jmaselbas at zdiv.net>
---
 drivers/clk/clk-divider.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c
index ccab70aecc..b05b042da5 100644
--- a/drivers/clk/clk-divider.c
+++ b/drivers/clk/clk-divider.c
@@ -308,6 +308,7 @@ static int clk_divider_set_rate(struct clk_hw *hw, unsigned long rate,
 	struct clk *clk = clk_hw_to_clk(hw);
 	struct clk_divider *divider = to_clk_divider(hw);
 	unsigned int value;
+	int ret;
 	u32 val;
 
 	if (divider->flags & CLK_DIVIDER_READ_ONLY)
@@ -320,8 +321,10 @@ static int clk_divider_set_rate(struct clk_hw *hw, unsigned long rate,
 		clk_set_rate(clk_get_parent(clk), parent_rate);
 	}
 
-	value = divider_get_val(rate, parent_rate, divider->table,
+	value = ret = divider_get_val(rate, parent_rate, divider->table,
 				divider->width, divider->flags);
+	if (ret < 0)
+		return ret;
 
 	val = readl(divider->reg);
 	val &= ~(clk_div_mask(divider->width) << divider->shift);
-- 
2.46.2