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| author | Richard Leitner <dev@g0hl1n.net> | 2016-04-05 15:03:48 +0200 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2016-04-17 13:16:36 +0200 |
| commit | 05be8d4101d960bad271d32b4f6096af1ccb1534 (patch) | |
| tree | 49d3ff2dcee32ea5e06b3adea30d221109a12a5a /drivers/iio/magnetometer/ak8975.c | |
| parent | iio: ak8975: Fix NULL pointer exception on early interrupt (diff) | |
| download | linux-05be8d4101d960bad271d32b4f6096af1ccb1534.tar.xz linux-05be8d4101d960bad271d32b4f6096af1ccb1534.zip | |
iio: ak8975: fix maybe-uninitialized warning
If i2c_device_id *id is NULL and acpi_match_device returns NULL too,
then chipset may be unitialized when accessing &ak_def_array[chipset] in
ak8975_probe. Therefore initialize chipset to AK_MAX_TYPE, which will
return an error when not changed.
This patch fixes the following maybe-uninitialized warning:
drivers/iio/magnetometer/ak8975.c: In function ‘ak8975_probe’:
drivers/iio/magnetometer/ak8975.c:788:14: warning: ‘chipset’ may be used
uninitialized in this function [-Wmaybe-uninitialized]
data->def = &ak_def_array[chipset];
Signed-off-by: Richard Leitner <dev@g0hl1n.net>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/magnetometer/ak8975.c')
| -rw-r--r-- | drivers/iio/magnetometer/ak8975.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index 3b23a850c930..0e931a9a1669 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -732,7 +732,7 @@ static int ak8975_probe(struct i2c_client *client, int eoc_gpio; int err; const char *name = NULL; - enum asahi_compass_chipset chipset; + enum asahi_compass_chipset chipset = AK_MAX_TYPE; /* Grab and set up the supplied GPIO. */ if (client->dev.platform_data) |