| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 05/47] spi: davinci: fix a NULL pointer dereference | Date | Fri, 7 Sep 2018 23:10:01 +0200 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
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>
--- drivers/spi/spi-davinci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/spi/spi-davinci.c +++ b/drivers/spi/spi-davinci.c @@ -220,7 +220,7 @@ static void davinci_spi_chipselect(struc pdata = &dspi->pdata; /* program delay transfers if tx_delay is non zero */ - if (spicfg->wdelay) + if (spicfg && spicfg->wdelay) spidat1 |= SPIDAT1_WDEL; /*
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