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| author |   Chen Gang <xili_gchen_5257@hotmail.com> | 2015-04-02 03:03:33 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2015-04-01 21:28:56 +0100 |
| commit | 057f6061a1972b0d63383cbbbb98795e8ef0a752 (patch) | |
| tree | a9cb171a078124340f2514089987a992b0ce9293 /drivers/spi | |
| parent | Linux 4.0-rc1 (diff) | |
| download | linux-dev-057f6061a1972b0d63383cbbbb98795e8ef0a752.tar.xz linux-dev-057f6061a1972b0d63383cbbbb98795e8ef0a752.zip | |
spi: spi-bfin5xx: Initialize cr_width in bfin_spi_pump_transfers()
cr_width may be not initialized before using by cr, the related warning
(with defconfig under blackfin by gcc5):
CC drivers/spi/spi-bfin5xx.o
drivers/spi/spi-bfin5xx.c: In function 'bfin_spi_pump_transfers':
drivers/spi/spi-bfin5xx.c:655:5: warning: 'cr_width' may be used uninitialized in this function [-Wmaybe-uninitialized]
cr |= cr_width;
^
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-bfin5xx.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c index 37079937d2f7..a3d65b4f4944 100644 --- a/drivers/spi/spi-bfin5xx.c +++ b/drivers/spi/spi-bfin5xx.c @@ -559,7 +559,7 @@ static void bfin_spi_pump_transfers(unsigned long data) struct spi_transfer *previous = NULL; struct bfin_spi_slave_data *chip = NULL; unsigned int bits_per_word; - u16 cr, cr_width, dma_width, dma_config; + u16 cr, cr_width = 0, dma_width, dma_config; u32 tranf_success = 1; u8 full_duplex = 0; @@ -648,7 +648,6 @@ static void bfin_spi_pump_transfers(unsigned long data) } else if (bits_per_word == 8) { drv_data->n_bytes = bits_per_word/8; drv_data->len = transfer->len; - cr_width = 0; drv_data->ops = &bfin_bfin_spi_transfer_ops_u8; } cr = bfin_read(&drv_data->regs->ctl) & ~(BIT_CTL_TIMOD | BIT_CTL_WORDSIZE); |