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mfd: menelaus: Fix error return code

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Convert a zero return value on error to a negative one, as returned
elsewhere in the function.

Additionally, converted 1 << 7 to BIT(7) at the suggestion of Lee Jones.

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>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Julia Lawall 2014-08-21 07:06:06 -05:00 committed by Lee Jones
parent 2a3377ee2d
commit 42a71ef97b
1 changed files with 4 additions and 4 deletions
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8
drivers/mfd/menelaus.c
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@ -1183,7 +1183,7 @@ static int menelaus_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct menelaus_chip *menelaus;
int rev = 0, val;
int rev = 0;
int err = 0;
struct menelaus_platform_data *menelaus_pdata =
dev_get_platdata(&client->dev);
@ -1236,10 +1236,10 @@ static int menelaus_probe(struct i2c_client *client,
pr_info("Menelaus rev %d.%d\n", rev >> 4, rev & 0x0f);
val = menelaus_read_reg(MENELAUS_VCORE_CTRL1);
if (val < 0)
err = menelaus_read_reg(MENELAUS_VCORE_CTRL1);
if (err < 0)
goto fail;
if (val & (1 << 7))
if (err & BIT(7))
menelaus->vcore_hw_mode = 1;
else
menelaus->vcore_hw_mode = 0;