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| author | Ben Dooks <ben@fluff.org> | 2008-03-04 15:09:06 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-04-19 19:10:24 -0700 |
| commit | da009f39f85a3ee9deeb10f0f05ddd4efdd67020 (patch) | |
| tree | ba04c23e0d5a831705f0f9bfe1a9be10aff99a78 /mm/util.c | |
| parent | 6c847402e1c69c1cfe2bddeadc8391bacbb3d0a5 (diff) | |
sysdev: detect multiple driver registrations
I've just found how easy it is to accidentally register a sysdev_driver for
two different classes. When this happens, bad things happen as the
sysdev_driver structure keeps has the list entry for the driver
registration.
The following patch makes a WARN_ON() if this happens, although I think
BUG_ON or returning -EAGAIN could also be valid responses to this.
Signed-off-by: Ben Dooks <ben@fluff.org>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'mm/util.c')
0 files changed, 0 insertions, 0 deletions