[ Upstream commit2c87309ea7] ca8210_test_interface_init() returns the result of kfifo_alloc(), which can be non-zero in case of an error. The caller, ca8210_probe(), should check the return value and do error-handling if it fails. Fixes:ded845a781("ieee802154: Add CA8210 IEEE 802.15.4 device driver") Signed-off-by: Keisuke Nishimura <keisuke.nishimura@inria.fr> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/20241029182712.318271-1-keisuke.nishimura@inria.fr Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Sasha Levin <sashal@kernel.org>