30 lines
889 B
Diff
30 lines
889 B
Diff
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From 13a364be644ed9b4666d452756556bb98afdcc56 Mon Sep 17 00:00:00 2001
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From: Jonas Gorski <jogo@openwrt.org>
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Date: Mon, 11 Mar 2013 13:48:27 +0100
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Subject: [PATCH 07/12] spi/bcm63xx: check spi bits_per_word in spi_setup
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Instead of fixing up the bits_per_word (which the spi subsystem already
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does for us), check it for supported values.
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Signed-off-by: Jonas Gorski <jogo@openwrt.org>
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---
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drivers/spi/spi-bcm63xx.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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--- a/drivers/spi/spi-bcm63xx.c
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+++ b/drivers/spi/spi-bcm63xx.c
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@@ -151,8 +151,11 @@ static void bcm63xx_spi_setup_transfer(s
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static int bcm63xx_spi_setup(struct spi_device *spi)
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{
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- if (!spi->bits_per_word)
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- spi->bits_per_word = 8;
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+ if (spi->bits_per_word != 8) {
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+ dev_err(&spi->dev, "%s, unsupported bits_per_word=%d\n",
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+ __func__, spi->bits_per_word);
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+ return -EINVAL;
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+ }
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return 0;
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}
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