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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2018-08-23 23:24:35 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2018-09-02 09:56:49 +0100 |
| commit | 24493cce03b689f9723244f9a7c2247296fc617e (patch) | |
| tree | 407ff781e9a5e523c14d16e5e46d61e2050afd69 | |
| parent | 8ba0dbfd07a3587aedb952a95292e41d70dbf16e (diff) | |
| download | linux-24493cce03b689f9723244f9a7c2247296fc617e.tar.bz2 | |
iio: light: isl29501: Simplify code to kill compiler warning
With gcc 4.1.2:
drivers/iio/proximity/isl29501.c: In function ‘isl29501_register_write’:
drivers/iio/proximity/isl29501.c:235: warning: ‘msb’ may be used uninitialized in this function
While this is a false positive, it can easily be avoided by removing the
"msb" intermediate variable.
Remove the "lsb" intermediate variable for consistency.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | drivers/iio/proximity/isl29501.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/drivers/iio/proximity/isl29501.c b/drivers/iio/proximity/isl29501.c index e5e94540f404..5ae549075b27 100644 --- a/drivers/iio/proximity/isl29501.c +++ b/drivers/iio/proximity/isl29501.c @@ -232,7 +232,6 @@ static u32 isl29501_register_write(struct isl29501_private *isl29501, u32 value) { const struct isl29501_register_desc *reg = &isl29501_registers[name]; - u8 msb, lsb; int ret; if (!reg->msb && value > U8_MAX) @@ -241,22 +240,15 @@ static u32 isl29501_register_write(struct isl29501_private *isl29501, if (value > U16_MAX) return -ERANGE; - if (!reg->msb) { - lsb = value & 0xFF; - } else { - msb = (value >> 8) & 0xFF; - lsb = value & 0xFF; - } - mutex_lock(&isl29501->lock); if (reg->msb) { ret = i2c_smbus_write_byte_data(isl29501->client, - reg->msb, msb); + reg->msb, value >> 8); if (ret < 0) goto err; } - ret = i2c_smbus_write_byte_data(isl29501->client, reg->lsb, lsb); + ret = i2c_smbus_write_byte_data(isl29501->client, reg->lsb, value); err: mutex_unlock(&isl29501->lock); |