From: Hauke Mehrtens hauke@hauke-m.de
[ Upstream commit 1e24c54da257ab93cff5826be8a793b014a5dc9c ]
The struct cas_control embeds multiple generic SPI structures and we have to make sure these structures are initialized to default values. This driver does not set all attributes. When using kmalloc before some attributes were not initialized and contained random data which caused random crashes at bootup.
Fixes: ded845a781a5 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver") Signed-off-by: Hauke Mehrtens hauke@hauke-m.de Link: https://lore.kernel.org/r/20221121002201.1339636-1-hauke@hauke-m.de Signed-off-by: Stefan Schmidt stefan@datenfreihafen.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ieee802154/ca8210.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c index fd9f33c833fa..95ef3b6f98dd 100644 --- a/drivers/net/ieee802154/ca8210.c +++ b/drivers/net/ieee802154/ca8210.c @@ -926,7 +926,7 @@ static int ca8210_spi_transfer(
dev_dbg(&spi->dev, "%s called\n", __func__);
- cas_ctl = kmalloc(sizeof(*cas_ctl), GFP_ATOMIC); + cas_ctl = kzalloc(sizeof(*cas_ctl), GFP_ATOMIC); if (!cas_ctl) return -ENOMEM;