linux-stable/drivers/s390
Alan Stern fde25a9b63 Driver core: driver_find() drops reference before returning
As part of the removal of get_driver()/put_driver(), this patch
(as1510) changes driver_find(); it now drops the reference it acquires
before returning.  The patch also adjusts all the callers of
driver_find() to remove the now unnecessary calls to put_driver().

In addition, the patch adds a warning to driver_find(): Callers must
make sure the driver they are searching for does not get unloaded
while they are using it.  This has always been the case; driver_find()
has never prevented a driver from being unregistered or unloaded.
Hence the patch will not introduce any new bugs.  The existing callers
all seem to be okay in this respect, however I don't understand the
video drivers well enough to be certain about them.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CC: Kyungmin Park <kyungmin.park@samsung.com>
CC: Andy Walls <awalls@md.metrocast.net>
CC: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-24 16:00:34 -08:00
..
block Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2012-01-09 08:11:13 -08:00
char module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
cio module_param: avoid bool abuse, add bint for special cases. 2012-01-13 09:32:17 +10:30
crypto [S390] zcrypt: Fix error return codes. 2011-12-27 11:27:13 +01:00
kvm virtio: harsher barriers for rpmsg. 2012-01-12 15:44:42 +10:30
net Driver core: driver_find() drops reference before returning 2012-01-24 16:00:34 -08:00
scsi [SCSI] zfcp: return early from slave_destroy if slave_alloc returned early 2011-12-14 15:40:43 +04:00
Makefile