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iio: magnetometer: ak8974: remove redundant zero timeout check 

At the end of the delay loop timeout will always be zero
and hence the check for !timeout will always be true. Remove
the redundant check and the redundant return 0 at the end of
the function.

Fixes CoverityScan CID#1357168 ("Logically dead code")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Colin Ian King 2017-01-11 17:49:33 +00:00 committed by Jonathan Cameron
parent a9c99c76f5
commit e2eb179c00
1 changed files with 2 additions and 6 deletions
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8
drivers/iio/magnetometer/ak8974.c
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@ -278,13 +278,9 @@ static int ak8974_await_drdy(struct ak8974 *ak8974)
if (val & AK8974_STATUS_DRDY)
return 0;
} while (--timeout);
if (!timeout) {
dev_err(&ak8974->i2c->dev,
"timeout waiting for DRDY\n");
return -ETIMEDOUT;
}
return 0;
dev_err(&ak8974->i2c->dev, "timeout waiting for DRDY\n");
return -ETIMEDOUT;
}
static int ak8974_getresult(struct ak8974 *ak8974, __le16 *result)