[GIT PULL] rust-i2c-fixes for 7.1-rc7

[GIT PULL] rust-i2c-fixes for 7.1-rc7

[Igor Korotin]

The following changes since commit e43ffb69e0438cddd72aaa30898b4dc446f664f8:

   Linux 7.1-rc6 (2026-05-31 15:14:24 -0700)

are available in the Git repository at:

   https://github.com/ikrtn/linux.git tags/rust-i2c-7.1-rc7

for you to fetch changes up to 4eb422482ca5d924d7212ad2ca1cb7ea6f5b524d:

   rust: i2c: fix I2cAdapter refcounts double increment (2026-06-06 
15:19:27 +0100)

----------------------------------------------------------------
rust: i2c: fix I2cAdapter refcount double increment

A single bugfix for the Rust I2C abstractions, targeting 7.1.

`I2cAdapter::get` calls `i2c_get_adapter()` which returns a pointer with
an already-incremented refcount. The code then converts the raw pointer to
an `ARef` via `.into()`, which calls `inc_ref()` again through the
`From<&T> for ARef<T>` impl — resulting in a leaked device and module
reference on every call.

The fix uses `ARef::from_raw()` instead, which takes ownership of the
existing refcount without incrementing it.

Signed-off-by: Igor Korotin <igor.korotin@linux.dev>

----------------------------------------------------------------
Nicolás Antinori (1):
       rust: i2c: fix I2cAdapter refcounts double increment

  rust/kernel/i2c.rs | 4 +++-
  1 file changed, 3 insertions(+), 1 deletion(-)

Re: [GIT PULL] rust-i2c-fixes for 7.1-rc7

[Wolfram Sang]

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On Sat, Jun 06, 2026 at 06:39:19PM +0100, Igor Korotin wrote:
> The following changes since commit e43ffb69e0438cddd72aaa30898b4dc446f664f8:
> 
>   Linux 7.1-rc6 (2026-05-31 15:14:24 -0700)
> 
> are available in the Git repository at:
> 
>   https://github.com/ikrtn/linux.git tags/rust-i2c-7.1-rc7
> 
> for you to fetch changes up to 4eb422482ca5d924d7212ad2ca1cb7ea6f5b524d:
> 
>   rust: i2c: fix I2cAdapter refcounts double increment (2026-06-06 15:19:27
> +0100)

Thanks, pulled. I was away over the weekend, so it couldn't make it into
rc7. But I will send it out later this week for 7.1 surely.

Please be already aware that from 7.2 on, you will need send pull
requests to Andi who takes over the I2C subsystem. I will write a
seperate mail about the handover later today.


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