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authorSakari Ailus2017-07-13 11:23:44 -0400
committerMauro Carvalho Chehab2019-05-29 16:39:52 -0400
commit814434984a5d2063ac15d7ff9a46075600ff1805 (patch)
tree8af7d90fa15ffab53c2501df67a6c35c9311ee3d /kernel/ucount.c
parentf42292040d31922ee4e4ea68e2f287fbc3bb2053 (diff)
media: omap3isp: Don't rely on devm for memory resource management
devm functions are fine for managing resources that are directly related to the device at hand and that have no other dependencies. However, a process holding a file handle to a device created by a driver for a device may result in the file handle left behind after the device is long gone. This will result in accessing released (and potentially reallocated) memory. Instead, manage the memory resources in the driver. Releasing the resources can be later on bound to e.g. by releasing a reference. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'kernel/ucount.c')
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