diff mbox series

spi: davinci: fix a NULL pointer dereference

Message ID 20180810091352.30227-1-brgl@bgdev.pl (mailing list archive)
State Accepted
Commit 563a53f3906a6b43692498e5b3ae891fac93a4af
Headers show
Series spi: davinci: fix a NULL pointer dereference | expand

Commit Message

Bartosz Golaszewski Aug. 10, 2018, 9:13 a.m. UTC 
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

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>
---
 drivers/spi/spi-davinci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 577084bb911b..a02099c90c5c 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;
 
 	/*