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spi: davinci: fix a NULL pointer dereference

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commit 563a53f390 upstream.

On non-OF systems spi->controlled_data may be NULL. This causes a NULL
pointer derefence on dm365-evm.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bartosz Golaszewski 2018-08-10 11:13:52 +02:00 committed by Greg Kroah-Hartman
parent b4de9ac2c7
commit c2b736ff27
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/spi-davinci.c
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@ -220,7 +220,7 @@ static void davinci_spi_chipselect(struct spi_device *spi, int value)
pdata = &dspi->pdata;
/* program delay transfers if tx_delay is non zero */
if (spicfg->wdelay)
if (spicfg && spicfg->wdelay)
spidat1 |= SPIDAT1_WDEL;
/*