From 563a53f3906a6b43692498e5b3ae891fac93a4af Mon Sep 17 00:00:00 2001
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Date: Fri, 10 Aug 2018 11:13:52 +0200
Subject: [PATCH] spi: davinci: fix a NULL pointer dereference
Git-commit: 563a53f3906a6b43692498e5b3ae891fac93a4af
Patch-mainline: v4.19-rc1
References: bsc#1051510
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
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/spi/spi-davinci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 60d59b003aa4..4ffc0f495be8 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;
/*
--
2.18.0