Arm FF-A fix for v6.15

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A fix that addresses incorrect release of Rx buffer ownership in the
 driver. The fix specificially avoids releasing Rx buffer ownership with
 FFA_RX_RELEASE if it wasn’t acquired during a FFA_PARTITION_INFO_GET call
 that only requested the partition count. This prevents unnecessary errors
 like FFA_RET_DENIED from firmware when buffers are not actually owned by
 the driver.
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Merge tag 'ffa-fix-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/fixes

Arm FF-A fix for v6.15

A fix that addresses incorrect release of Rx buffer ownership in the
driver. The fix specificially avoids releasing Rx buffer ownership with
FFA_RX_RELEASE if it wasn’t acquired during a FFA_PARTITION_INFO_GET call
that only requested the partition count. This prevents unnecessary errors
like FFA_RET_DENIED from firmware when buffers are not actually owned by
the driver.

* tag 'ffa-fix-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_ffa: Skip Rx buffer ownership release if not acquired

...

This commit is contained in:

Arnd Bergmann 2025-04-29 18:14:19 +02:00

parent 94ddc14095 4567bdaaaa

commit fbefe1c45d

1 changed files with 2 additions and 1 deletions

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drivers/firmware/arm_ffa/driver.c

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