[PATCH 0/2] mailbox: pcc: Fix shared-memory teardown race

From: Christian Loehle

Date: Thu Sep 03 2026 - 07:17:06 EST


Breno’s fix frees the PCC channel before unmapping shared memory, ensuring
the IRQ is disabled first. The second patch serializes channel release and
request so a new mapping cannot be unmapped by the old release.

(I'm happy to have my patch folded into Breno's if that's preferred.)

Breno Leitao (1):
mailbox: pcc: Free the channel before unmapping the shared memory

Christian Loehle (1):
mailbox: pcc: Serialize channel updates with shared memory teardown

drivers/mailbox/pcc.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)

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2.34.1