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spi: sirf: replace BUG condition by error code for unsupported transfer

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return error for unsupported bits-per-word format, BUG() is not right
for this scenerios as we are not an ASSERT but an error handler.

Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <baohua.song@csr.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Qipan Li 2015-04-27 09:22:28 +00:00 committed by Mark Brown
parent b787f68c36
commit f08654a2b5
1 changed files with 2 additions and 1 deletions
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3
drivers/spi/spi-sirf.c
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@ -559,7 +559,8 @@ spi_sirfsoc_setup_transfer(struct spi_device *spi, struct spi_transfer *t)
sspi->tx_word = spi_sirfsoc_tx_word_u32;
break;
default:
BUG();
dev_err(&spi->dev, "bpw %d not supported\n", bits_per_word);
return -EINVAL;
}
sspi->word_width = DIV_ROUND_UP(bits_per_word, 8);