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ca8210: Fix crash by zero initializing data 

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: ded845a781 ("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>
This commit is contained in:
Hauke Mehrtens 2022-11-21 01:22:01 +01:00 committed by Stefan Schmidt
parent 4d002d6a2a
commit 1e24c54da2
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ieee802154/ca8210.c
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@ -885,7 +885,7 @@ 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;