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From: Igor Korotin <igor.korotin@linux.dev>
To: Wolfram Sang <wsa@kernel.org>
Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [GIT PULL] rust-i2c-fixes for 7.1-rc7
Date: Sat, 6 Jun 2026 18:39:19 +0100	[thread overview]
Message-ID: <9e49b71b-8b60-479e-93e7-5c12e352c78e@linux.dev> (raw)

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(-)

             reply	other threads:[~2026-06-06 17:39 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-06 17:39 Igor Korotin [this message]
2026-06-08  7:51 ` [GIT PULL] rust-i2c-fixes for 7.1-rc7 Wolfram Sang
2026-06-09  9:26   ` Wolfram Sang
2026-06-09 12:08     ` Igor Korotin
2026-06-09 14:53       ` Miguel Ojeda

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