[PATCH v4 0/2] i2c: imx: Fix slave mode corner issues

From: Liem

Date: Sun Jun 28 2026 - 22:39:36 EST


This series fixes two issues in the i2c-imx target mode.

Patch 1 defers slave pointer assignment to after a successful resume
and protects it with the slave_lock to prevent races with the shared
IRQ handler.

Patch 2 cancels the hrtimer before clearing the slave pointer during
unregistration, preventing a potential use-after-free.

Changes in v4:
- Patch 1: reworked to avoid race with shared IRQ handler, as
suggested by Sashiko.
- Patch 2: unchanged.

Changes in v3:
- Split the original patch into two separate patches as suggested by
Frank Li.
- v2: https://lore.kernel.org/imx/
20260625160219.55116-1-liem16213@xxxxxxxxx/

Liem (2):
i2c: imx: Fix slave registration race and error handling
i2c: imx: Cancel hrtimer before clearing slave pointer

drivers/i2c/busses/i2c-imx.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

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2.34.1