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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>
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1 changed files with 1 additions and 1 deletions
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@ -732,7 +732,7 @@ static int ak8975_probe(struct i2c_client *client,
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int eoc_gpio;
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int err;
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const char *name = NULL;
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enum asahi_compass_chipset chipset;
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enum asahi_compass_chipset chipset = AK_MAX_TYPE;
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/* Grab and set up the supplied GPIO. */
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if (client->dev.platform_data)
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