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power_supply: bq25890: make chip_id int

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Smatch static checker correctly detected an impossible condition because
chip_id was declared as u8, instead of int:

drivers/power/bq25890_charger.c:843 bq25890_probe()
warn: impossible condition '(bq->chip_id < 0) => (0-255 < 0)'

Also, while at it, fix the return value too.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Laurentiu Palcu 2015-06-02 13:36:51 +03:00 committed by Sebastian Reichel
parent e86d69dd78
commit 23fa43a28d
1 changed files with 2 additions and 2 deletions
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4
drivers/power/bq25890_charger.c
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@ -99,7 +99,7 @@ struct bq25890_device {
struct regmap *rmap;
struct regmap_field *rmap_fields[F_MAX_FIELDS];
u8 chip_id;
int chip_id;
struct bq25890_init_data init_data;
struct bq25890_state state;
@ -842,7 +842,7 @@ static int bq25890_probe(struct i2c_client *client,
bq->chip_id = bq25890_field_read(bq, F_PN);
if (bq->chip_id < 0) {
dev_err(dev, "Cannot read chip ID.\n");
return ret;
return bq->chip_id;
}
if (bq->chip_id != BQ25890_ID) {