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| author | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2018-08-10 12:13:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-09 20:55:52 +0300 |
| commit | aa1d05c504832dbb17855dd4bd858b1cb263ca7b (patch) | |
| tree | b84334ac8d63c07517042ba5495cc310536937da | |
| parent | 4d3016e56c3d2fdbd5b1a984c4316da3cfbf63a9 (diff) | |
| download | linux-aa1d05c504832dbb17855dd4bd858b1cb263ca7b.tar.xz | |
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>
| -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 6ddb6ef1fda4..c5bbe08771a4 100644 --- a/drivers/spi/spi-davinci.c +++ b/drivers/spi/spi-davinci.c @@ -217,7 +217,7 @@ 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; /* |