The clk_prepare_enable() function can fail so check the return
value and propagate the error in case of a failure.
Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
---
drivers/mfd/twl6040.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c
index 4de92c16dfb8..852d5874aabb 100644
--- a/drivers/mfd/twl6040.c
+++ b/drivers/mfd/twl6040.c
@@ -291,7 +291,11 @@ int twl6040_power(struct twl6040 *twl6040, int on)
if (twl6040->power_count++)
goto out;
- clk_prepare_enable(twl6040->clk32k);
+ ret = clk_prepare_enable(twl6040->clk32k);
+ if (ret) {
+ twl6040->power_count = 0;
+ goto out;
+ }
/* Allow writes to the chip */
regcache_cache_only(twl6040->regmap, false);
--
2.5.5
--
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