From 24493cce03b689f9723244f9a7c2247296fc617e Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 23 Aug 2018 23:24:35 +0200 Subject: iio: light: isl29501: Simplify code to kill compiler warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Jonathan Cameron --- drivers/iio/proximity/isl29501.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) (limited to 'drivers/iio/proximity') 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); -- cgit v1.2.3