[PATCH 0/2] uio: some fixes

From: Benedikt Spranger
Date: Thu Dec 06 2012 - 07:47:25 EST


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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/