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iio:magnetometer:ak8975: fix uninitialized chipset

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ak_def_array bounds are not properly checked in case of ACPI matching
failure. GCC warns with the following message at line 799:
‘chipset’ may be used uninitialized in this function.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Gregor Boirie 2016-03-03 11:44:03 +01:00 committed by Jonathan Cameron
parent f0fa15cce1
commit 55c0c530f7
1 changed files with 4 additions and 1 deletions
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5
drivers/iio/magnetometer/ak8975.c
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@ -774,8 +774,11 @@ static int ak8975_probe(struct i2c_client *client,
if (id) {
chipset = (enum asahi_compass_chipset)(id->driver_data);
name = id->name;
} else if (ACPI_HANDLE(&client->dev))
} else if (ACPI_HANDLE(&client->dev)) {
name = ak8975_match_acpi_device(&client->dev, &chipset);
if (!name)
return -ENODEV;
}
else
return -ENOSYS;