[GIT PULL] samsung: drivers firmware for v7.1

[GIT PULL] samsung: drivers firmware for v7.1

[Krzysztof Kozlowski]

Hi Arnd and SoC folks,

Few driver fixes for current cycle.

Best regards,
Krzysztof


The following changes since commit 254f49634ee16a731174d2ae34bc50bd5f45e731:

  Linux 7.1-rc1 (2026-04-26 14:19:00 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux.git tags/samsung-drivers-fixes-7.1

for you to fetch changes up to 10313b4cca783ef2e38b2a76dc42dda481d7ebf3:

  firmware: samsung: acpm: Fix infinite loop on sequence number exhaustion (2026-05-14 18:55:00 +0200)

----------------------------------------------------------------
Samsung SoC driver fixes for v7.1

Fix several concurrency issues present in Samsung ACPM firmware drivers,
used currently only on Google GS101.  Tudor with help of Sashiko
identified several missing barriers and incomplete synchronization,
leading to possible transfer data corruption or use after free.  Few
other issues related to probe, including missing mailbox cleanup, were
also fixed.

----------------------------------------------------------------
Tudor Ambarus (7):
      firmware: samsung: acpm: Fix cross-thread RX length corruption
      firmware: samsung: acpm: Fix mailbox channel leak on probe error
      firmware: samsung: acpm: Fix dummy stubs to return ERR_PTR
      firmware: samsung: acpm: Add memory barrier before advancing RX pointer
      firmware: samsung: acpm: Fix false timeouts and Use-After-Free in polling
      firmware: samsung: acpm: Fix missing LKMM barriers in sequence allocator
      firmware: samsung: acpm: Fix infinite loop on sequence number exhaustion

 drivers/firmware/samsung/exynos-acpm-dvfs.c        |   3 +
 drivers/firmware/samsung/exynos-acpm.c             | 145 ++++++++++++++-------
 .../linux/firmware/samsung/exynos-acpm-protocol.h  |   3 +-
 3 files changed, 106 insertions(+), 45 deletions(-)