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| author | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2018-08-10 11:13:52 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-09 20:01:19 +0200 |
| commit | ae8f22ed6f92c3e1a7d0d4edb2d6dfbea51406b4 (patch) | |
| tree | 0ae35a74fc9232bdb52c749484fffa6d4314dbd3 /drivers/spi | |
| parent | 5c45154990d557575cfa74b0b14b8a16f36af31f (diff) | |
| download | linux-rt-ae8f22ed6f92c3e1a7d0d4edb2d6dfbea51406b4.tar.gz | |
spi: davinci: fix a NULL pointer dereference
commit 563a53f3906a6b43692498e5b3ae891fac93a4af 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>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-davinci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c index 0d8f43a17edb..1905d20c229f 100644 --- a/drivers/spi/spi-davinci.c +++ b/drivers/spi/spi-davinci.c @@ -215,7 +215,7 @@ 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; /* |