lkml.org 
[lkml]   [2016]   [Apr]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/2] mfd: twl6040: Check clk_prepare_enable() return value in twl6040_power()
Date
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@osg.samsung.com>

---

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
\
 
 \ /
  Last update: 2016-04-20 17:41    [W:0.649 / U:0.368 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site