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Niels Dossche a7ecbe92b9 firewire: core: extend card->lock in fw_core_handle_bus_reset

card->local_node and card->bm_retries are both always accessed under
card->lock.
fw_core_handle_bus_reset has a check whose condition depends on
card->local_node and whose body writes to card->bm_retries.
Both of these accesses are not under card->lock. Move the lock acquiring
of card->lock to before this check such that these accesses do happen
when card->lock is held.
fw_destroy_nodes is called inside the check.
Since fw_destroy_nodes already acquires card->lock inside its function
body, move this out to the callsites of fw_destroy_nodes.
Also add a comment to indicate which locking is necessary when calling
fw_destroy_nodes.

Cc: <[email protected]>
Signed-off-by: Niels Dossche <[email protected]>
Signed-off-by: Takashi Sakamoto <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>

2022-04-25 08:01:09 +02:00

core-card.c

firewire: core: extend card->lock in fw_core_handle_bus_reset

2022-04-25 08:01:09 +02:00

core-cdev.c

firewire: fix potential uaf in outbound_phy_packet_callback()

2022-04-25 08:01:07 +02:00

core-device.c

bus: Make remove callback return void

2021-07-21 11:53:42 +02:00

core-iso.c

treewide: Use fallthrough pseudo-keyword