[0/4] wifi: rtlwifi probe error path fixes

Message

Thadeu Lima de Souza Cascardo Nov. 22, 2024, 5:27 p.m. UTC

These fix different bugs when the probe fails. One of them is the addition
to a global list, which is not removed during the error path. That list has
been removed.

Then, some memory leaks are fixed, which require a change in where the
workqueue is destroyed.

Finally, the firmware completion is waited to prevent its callback from
accessing freed data.

These were tested against an "emulated" rtl8192se. It was a changed rtl8139
device under qemu with the rtl8192se PCI ID. Memory allocation failures
were injected over 4 different places: init_sw_vars, rtl_pci_init,
rtl_init_core and ieee80211_register_hw.

Thadeu Lima de Souza Cascardo (4):
  wifi: rtlwifi: remove unused check_buddy_priv
  wifi: rltwifi: destroy workqueue at rtl_deinit_core
  wifi: rtlwifi: fix memory leaks and invalid access at probe error path
  wifi: rtlwifi: pci: wait for firmware loading before releasing memory

 drivers/net/wireless/realtek/rtlwifi/base.c | 12 ++---
 drivers/net/wireless/realtek/rtlwifi/base.h |  1 -
 drivers/net/wireless/realtek/rtlwifi/pci.c  | 60 ++++-----------------
 drivers/net/wireless/realtek/rtlwifi/usb.c  |  5 --
 drivers/net/wireless/realtek/rtlwifi/wifi.h | 12 -----
 5 files changed, 14 insertions(+), 76 deletions(-)