From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout01.posteo.de (mout01.posteo.de [185.67.36.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B0EB0378D6B for ; Sat, 5 Sep 2026 13:30:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.67.36.65 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788615026; cv=none; b=TSo76rKpLg9fAm9kKRBlXLrUTQ86onGSH04tEAZHkDHemQvbcRjzB5bUX1X0hixgGtWBE76xlHiirmuKnK8L5RnQpNJpMf7iz7R1rHp4aWVfvqPmLZ9J5Kez0DkKeDg8NS4cF65kiydV0e2dj43zwDiySGbxteGE49duiGgHky8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788615026; c=relaxed/simple; bh=/sHkrXd6mCsWP9i59t2eUZxlmi8BLvtU4brDKGMSKfY=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=d/7fAxwiBEbyDkAvyKDGHHgvbYHgLNjHNFXAgkPWyY5W/QHglcIXrj1JAgtbKxS7bDHVjnIdjciTqDQ111/z4Bppe/mXPqxD879WYsDjx/RQi3RYhd9pm/oxwV5UOCZPtmW1FkzKJMR4srDmo+OlXSTVx0eUTuNTVDxI1MIE9KM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=posteo.de; spf=pass smtp.mailfrom=posteo.de; dkim=pass (2048-bit key) header.d=posteo.de header.i=@posteo.de header.b=QXlrqFr9; arc=none smtp.client-ip=185.67.36.65 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=posteo.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=posteo.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=posteo.de header.i=@posteo.de header.b="QXlrqFr9" Received: from submission (posteo.de [185.67.36.169]) by mout01.posteo.de (Postfix) with ESMTPS id AD3F9240027 for ; Sat, 5 Sep 2026 15:30:10 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=posteo.de; s=1984.8680eb; t=1788615010; bh=ssXWVRsdIn5Z3wp/OqRzUmICHe0zBBdsbTkhBd3pUl8=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type: Content-Transfer-Encoding:To:Cc:Autocrypt:OpenPGP:From; b=QXlrqFr9HuBpRI0YW8i5KXt/L47Iu6HjJYlnWgchtqgQvIrGsPFXDvJvPsNmWuD7c EHcxu+4JDl/MiWvGYD3Id+k5ii0FxBZ9U6eyenxouUV0QeTA1cmxUfmBbliK/VAMPw gmlqMDFSrlOGybJNUjR1WaAZUYyZOLXCZDmHFaySLW+lcqrKzrEov7AzWedp27To+n irLGmfDpWa9IhGfP6wWerssU2Fn5MJo0dzfmcAYl1uS9ZiwHkNNC3W0i1knBZ5WISB +ahYi/OBcxiAFtDfl9hdRp5PY4bNy6pmX10sMtCv1mPHaVagDeb2xAqlWwuKdxGsQD Y1AGQKca7SkaA== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4hcZ2R4dQVz9rxK; Sat, 5 Sep 2026 15:30:07 +0200 (CEST) From: Markus Probst Subject: [PATCH v2 0/2] rust: serdev: Mitigate race conditions Date: Sat, 05 Sep 2026 13:30:09 +0000 Message-Id: <20260905-rust_serdev_fix-v2-0-35dfcd06ef2e@posteo.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAAAAAAAC/2WOyw6DIBBFf8XMuhjBR9VV/6MxBnCsNKlYQNLG+ O/Fx67LM7n3zlnAolFooY4WMOiVVXoMwC4RyIGPDySqCwwsYUVSJRkxs3VtKHXo2159iMC07yt Z8hxLCK3JYDjvi/fmYDuLJ0q3zZwJg+85vHJHDAS3SKR+vZSrI3+NU2Ikha09KOu0+e56nu7h0 yT/M/GUUMKQV0zQPOOFuE3aOtRxh9Cs6/oD9V4ZKewAAAA= X-Change-ID: 20260904-rust_serdev_fix-be3ff9c8a5e8 To: Miguel Ojeda , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , Daniel Almeida , Tamir Duberstein , Alexandre Courbot , =?utf-8?q?Onur_=C3=96zkan?= , Greg Kroah-Hartman , "Rafael J. Wysocki" Cc: linux-serial@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, driver-core@lists.linux.dev, Markus Probst , Sashiko Bot X-Developer-Signature: v=1; a=openpgp-sha256; l=827; i=markus.probst@posteo.de; h=from:subject:message-id; bh=/sHkrXd6mCsWP9i59t2eUZxlmi8BLvtU4brDKGMSKfY=; b=owEBiQJ2/ZANAwAIATR2H/jnrUPSAcsmYgBqnBle/rNQ43bFeWvmH7iHmkj/W27WBDdPA0qVU 5P/X1L+LwiJAk8EAAEIADkWIQSCdBjE9KxY53IwxHM0dh/4561D0gUCapwZXhsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQNHYf+OetQ9LuqRAAtqn3qkNC3+UTHyE8m0I9w6+MBP92p7q NdJU/6JRKnYMBVMK1k9hLbGan9EPhVs5QhugjRFIabfR/eD9zEOAbZnV4q2M/H5M3n9EBzOy45R Sekyzc4Ph+pOuyC8R+uePR1jJIxZJ8x3GMSQbovUWJ7l/SKdopO2CClJMXXbglGpNEXfUZc1jpI Mx1tIyIf0GGeDELhIfT9ErSF64ZsA3doMc9QllgiYhVskThQujUKsRoiE1MiCWZ5VWigWk4mNMl c8e2EjwPJs0WPa5i+gHSex1BBrhN5ldZEje41TEW30Ny5mMthnhPvrtkhx1b/mbiPq3UKIRs65H j71Zuni1qxVtFvpms0MeTZ7vAY7/C65IsndwyUAeRADZ40fGoPRSjRPzZ1LEY8pcCv4Ploa9/xf RzW9G0aLqUELAjRcY6ueI39XQObGi/1kMdy3LOCf0d1K2GNl5KkYqxC4pLcmnWumhL/qkWsDfiQ gVnfjL6WG+wildevUU1RUcm8GN0/7u1JLwlnEsxKgN9Sup4vgYY3MQcZx8lbg94+WwXy+1fEMdk QIbCQvpSpJopL2nNqerx1/KVqvEXhnFEZFwNhnx5nbHx7ypIJgVm439yah+l0UMrO2DXKMlqfFq iP64S7/M9P0xIXCR+r4bkao0jatrrlmfKn81qHUiiT5NAi/aac+E= X-Developer-Key: i=markus.probst@posteo.de; a=openpgp; fpr=827418C4F4AC58E77230C47334761FF8E7AD43D2 Autocrypt: addr=markus.probst@posteo.de; prefer-encrypt=mutual; keydata=xsFNBGiDvXgBEADAXUceKafpl46S35UmDh2wRvvx+UfZbcTjeQOlSwKP7YVJ4JOZrVs93qReNLkO WguIqPBxR9blQ4nyYrqSCV+MMw/3ifyXIm6Pw2YRUDg+WTEOjTixRCoWDgUj1nOsvJ9tVAm76Ww+ /pAnepVRafMID0rqEfD9oGv1YrfpeFJhyE2zUw3SyyNLIKWD6QeLRhKQRbSnsXhGLFBXCqt9k5JA RhgQof9zvztcCVlT5KVvuyfC4H+HzeGmu9201BVyihJwKdcKPq+n/aY5FUVxNTgtI9f8wIbmfAja oT1pjXSp+dszakA98fhONM98pOq723o/1ZGMZukyXFfsDGtA3BB79HoopHKujLGWAGskzClwTjRQ xBqxh/U/lL1pc+0xPWikTNCmtziCOvv0KA0arDOMQlyFvImzX6oGVgE4ksKQYbMZ3Ikw6L1Rv1J+ FvN0aNwOKgL2ztBRYscUGcQvA0Zo1fGCAn/BLEJvQYShWKeKqjyncVGoXFsz2AcuFKe1pwETSsN6 OZncjy32e4ktgs07cWBfx0v62b8md36jau+B6RVnnodaA8++oXl3FRwiEW8XfXWIjy4umIv93tb8 8ekYsfOfWkTSewZYXGoqe4RtK80ulMHb/dh2FZQIFyRdN4HOmB4FYO5sEYFr9YjHLmDkrUgNodJC XCeMe4BO4iaxUQARAQABzRdtYXJrdXMucHJvYnN0QHBvc3Rlby5kZcLBkQQTAQgAOxYhBIJ0GMT0 rFjncjDEczR2H/jnrUPSBQJog714AhsDBQsJCAcCAiICBhUKCQgLAgQWAgMBAh4HAheAAAoJEDR2 H/jnrUPSgdkQAISaTk2D345ehXEkn5z2yUEjaVjHIE7ziqRaOgn/QanCgeTUinIv6L6QXUFvvIfH 1OLPwQ1hfvEg9NnNLyFezWSy6jvoVBTIPqicD/r3FkithnQ1IDkdSjrarPMxJkvuh3l7XZHo49GV HQ8i5zh5w4YISrcEtE99lJisvni2Jqx7we5tey9voQFDyM8jxlSWv3pmoUTCtBkX/eKHJXosgsuS B4TGDCVPOjla/emI5c9MhMG7O4WEEmoSdPbmraPw66YZD6uLyhV4DPHbiDWRzXWnClHSyjB9rky9 lausFxogvu4l9H+KDsXIadNDWdLdu1/enS/wDd9zh5S78rY2jeXaG4mnf4seEKamZ7KQ6FIHrcyP ezdDzssPQcTQcGRMQzCn6wP3tlGk7rsfmyHMlFqdRoNNv+ZER/OkmZFPW655zRfbMi0vtrqK2Awm 9ggobb1oktfd9PPNXMUY+DNVlgR2G7jLnenSoQausLUm0pHoNE8TWFv851Y6SOYnvn488sP1Tki5 F3rKwclawQFHUXTCQw+QSh9ay8xgnNZfH+u9NY7w3gPoeKBOAFcBc2BtzcgekeWS8qgEmm2/oNFV G0ivPQbRx8FjRKbuF7g3YhgNZZ0ac8FneuUtJ2PkSIFTZhaAiC0utvxk0ndmWFiW4acEkMZGrLaM L2zWNjrqwsD2zsFNBGiDvXgBEADCXQy1n7wjRxG12DOVADawjghKcG+5LtEf31WftHKLFbp/HArj BhkT6mj+CCI1ClqY+FYU5CK/s0ScMfLxRGLZ0Ktzawb78vOgBVFT3yB1yWBTewsAXdqNqRooaUNo 8cG/NNJLjhccH/7PO/FWX5qftOVUJ/AIsAhKQJ18Tc8Ik73v427EDxuKb9mTAnYQFA3Ev3hAiVbO 6Rv39amVOfJ8sqwiSUGidj2Fctg2aB5JbeMln0KCUbTD1LhEFepeKypfofAXQbGwaCjAhmkWy/q3 IT1mUrPxOngbxdRoOx1tGUC0HCMUW1sFaJgQPMmDcR0JGPOpgsKnitsSnN7ShcCr1buel7vLnUMD +TAZ5opdoF6HjAvAnBQaijtK6minkrM0seNXnCg0KkV8xhMNa6zCs1rq4GgjNLJue2EmuyHooHA4 7JMoLVHcxVeuNTp6K2+XRx0Pk4e2Lj8IVy9yEYyrywEOC5XRW37KJjsiOAsumi1rkvM7QREWgUDe Xs0+RpxI3QrrANh71fLMRo7LKRF3Gvw13NVCCC9ea20P4PwhgWKStkwO2NO+YJsAoS1QycMi/vKu 0EHhknYXamaSV50oZzHKmX56vEeJHTcngrM8R1SwJCYopCx9gkz90bTVYlitJa5hloWTYeMD7FNj Y6jfVSzgM/K4gMgUNDW/PPGeMwARAQABwsF2BBgBCAAgFiEEgnQYxPSsWOdyMMRzNHYf+OetQ9IF AmiDvXgCGwwACgkQNHYf+OetQ9LHDBAAhk+ab8+WrbS/b1/gYW3q1KDiXU719nCtfkUVXKidW5Ec Idlr5HGt8ilLoxSWT2Zi368iHCXS0WenGgPwlv8ifvB7TOZiiTDZROZkXjEBmU4nYjJ7GymawpWv oQwjMsPuq6ysbzWtOZ7eILx7cI0FjQeJ/Q2baRJub0uAZNwBOxCkAS6lpk5Fntd2u8CWmDQo4SYp xeuQ+pwkp0yEP30RhN2BO2DXiBEGSZSYh+ioGbCHQPIV3iVj0h6lcCPOqopZqyeCfigeacBI0nvN jHWz/spzF3+4OS+3RJvoHtAQmProxyGib8iVsTxgZO3UUi4TSODeEt0i0kHSPY4sCciOyXfAyYoD DFqhRjOEwBBxhr+scU4C1T2AflozvDwq3VSONjrKJUkhd8+WsdXxMdPFgBQuiKKwUy11mz6KQfcR wmDehF3UaUoxa+YIhWPbKmycxuX/D8SvnqavzAeAL1OcRbEI/HsoroVlEFbBRNBZLJUlnTPs8ZcU 4+8rq5YX1GUrJL3jf6SAfSgO7UdkEET3PdcKFYtS+ruV1Cp5V0q4kCfI5jk25iiz8grM2wOzVSsc l1mEkhiEPH87HP0whhb544iioSnumd3HJKL7dzhRegsMizatupp8D65A2JziW0WKopa1iw9fti3A aBeNN4ijKZchBXHPgVx+YtWRHfcm4l8= OpenPGP: url=https://posteo.de/keys/markus.probst@posteo.de.asc; preference=encrypt For details, see the commit messages. I will submit a patch (for the next merge cycle) soon, which will make the probe and unbind code less convoluted. This will make bugs like these more unlikely. Signed-off-by: Markus Probst --- Changes in v2: - also fix race condition on unbind - Link to v1: https://patch.msgid.link/20260905-rust_serdev_fix-v1-1-2ea92b154a6b@posteo.de --- Markus Probst (2): rust: serdev: Fix race condition on driver unbind rust: serdev: Fix race condition on driver probe rust/kernel/device.rs | 16 +++++++++------- rust/kernel/driver.rs | 2 +- rust/kernel/serdev.rs | 2 +- 3 files changed, 11 insertions(+), 9 deletions(-) --- base-commit: e5e04726cdd043e309677071ab1b65a4b18f422b change-id: 20260904-rust_serdev_fix-be3ff9c8a5e8