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>
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@ -559,7 +559,7 @@ static void bfin_spi_pump_transfers(unsigned long data)
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struct spi_transfer *previous = NULL;
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struct bfin_spi_slave_data *chip = NULL;
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unsigned int bits_per_word;
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u16 cr, cr_width, dma_width, dma_config;
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u16 cr, cr_width = 0, dma_width, dma_config;
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u32 tranf_success = 1;
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u8 full_duplex = 0;
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@ -648,7 +648,6 @@ static void bfin_spi_pump_transfers(unsigned long data)
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} else if (bits_per_word == 8) {
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drv_data->n_bytes = bits_per_word/8;
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drv_data->len = transfer->len;
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cr_width = 0;
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drv_data->ops = &bfin_bfin_spi_transfer_ops_u8;
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}
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cr = bfin_read(&drv_data->regs->ctl) & ~(BIT_CTL_TIMOD | BIT_CTL_WORDSIZE);
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