net: ieee802154: ca8210: Stop leaking skb's

stable inclusion
from stable-v4.19.228
commit d6a44feb2f28d71a7e725f72d09c97c81561cd9a
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA71ZX
CVE: CVE-2022-48722

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=d6a44feb2f28d71a7e725f72d09c97c81561cd9a



--------------------------------

commit 621b24b0 upstream.

Upon error the ieee802154_xmit_complete() helper is not called. Only
ieee802154_wake_queue() is called manually. We then leak the skb
structure.

Free the skb structure upon error before returning.

Fixes: ded845a7 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20220125121426.848337-5-miquel.raynal@bootlin.com


Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Liu Shixin <liushixin2@huawei.com>