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Subject[PATCH 4/14] drivers/power/bq27x00_battery.c: fix error return code
Date
From: Julia Lawall <Julia.Lawall@lip6.fr>

Initialize return variable before exiting on an error path.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}

// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
drivers/power/bq27x00_battery.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
index 181ddec..5860d4d 100644
--- a/drivers/power/bq27x00_battery.c
+++ b/drivers/power/bq27x00_battery.c
@@ -814,7 +814,8 @@ static int bq27x00_battery_probe(struct i2c_client *client,
di->bat.name = name;
di->bus.read = &bq27x00_read_i2c;

- if (bq27x00_powersupply_init(di))
+ retval = bq27x00_powersupply_init(di);
+ if (retval)
goto batt_failed_3;

i2c_set_clientdata(client, di);


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