linux-kernel - [PATCH 0/2] uio: some fixes

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Date:	Thu,  6 Dec 2012 13:44:55 +0100
From:	Benedikt Spranger <b.spranger@...utronix.de>
To:	linux-kernel@...r.kernel.org
Cc:	hjk@...sjkoch.de, gregkh@...uxfoundation.org,
	Alexander.Frank@...rspaecher.com,
	Benedikt Spranger <b.spranger@...utronix.de>
Subject: [PATCH 0/2] uio: some fixes

Using uio_pdrv_genirq can cause a system hangup due to accessing mmaped memory,
since the pm_runtime_put_sync() call in uio_release can disable clocks.
Also unloading a module wich creates/removes UIO devices can cause a system
crash. Track mappings and get a module reference to avoid this.

Benedikt Spranger (2):
  uio: be aware of open(), mmap(), close()
  uio: avoid module unloding of in module created UIO devices

 drivers/uio/uio.c             |   67 ++++++++++++++++++++++++++++++++---------
 drivers/uio/uio_pdrv_genirq.c |    4 +--
 include/linux/uio_driver.h    |    5 +--
 3 files changed, 57 insertions(+), 19 deletions(-)

-- 
1.7.10.4

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