linux-kernel - [PATCH 0/2] misc: fastrpc: Fixes for issues in userspace

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Message-Id: <20230130222716.7016-1-mailingradian@gmail.com>
Date:   Mon, 30 Jan 2023 17:27:14 -0500
From:   Richard Acayan <mailingradian@...il.com>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Amol Maheshwari <amahesh@....qualcomm.com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thierry Escande <thierry.escande@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Richard Acayan <mailingradian@...il.com>
Subject: [PATCH 0/2] misc: fastrpc: Fixes for issues in userspace

Hi everyone,

I've been playing around a bit with the FastRPC ioctl interface on the
Pixel 3a with some device tree patches. Since the ADSP crashes every 10
seconds, the inconvenience caused by related bugs encouraged me to write
a few fixes. A demonstration is provided in patch 2.

Please enjoy and review these patches for better userspace while remote
processors crash.

Richard Acayan (2):
  misc: fastrpc: return -EPIPE to invocations on device removal
  misc: fastrpc: reject new invocations during device removal

 drivers/misc/fastrpc.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

-- 
2.39.1