staging: r8712: Fix memory leak in _r8712_init_xmit_priv()

[ Upstream commit ac836312 ]

In the above mentioned routine, memory is allocated in several places.
If the first succeeds and a later one fails, the routine will leak memory.
This patch fixes commit 2865d42c ("staging: r8712u: Add the new driver
to the mainline kernel"). A potential memory leak in
r8712_xmit_resource_alloc() is also addressed.

Fixes: 2865d42c

 ("staging: r8712u: Add the new driver to the mainline kernel")
Reported-by:  <syzbot+cf71097ffb6755df8251@syzkaller.appspotmail.com>
Closes: https://syzkaller.appspot.com/x/log.txt?x=11ac3fa0a80000


Cc: stable@vger.kernel.org
Cc: Nam Cao <namcaov@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Reviewed-by: Nam Cao <namcaov@gmail.com>
Link: https://lore.kernel.org/r/20230714175417.18578-1-Larry.Finger@lwfinger.net


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>