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| author | Greg Kroah-Hartman <gregkh@suse.de> | 2008-05-15 22:44:08 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-05-20 22:31:53 +0200 |
| commit | 19051c5035d217e572672a2ca9db06c1cef50e9b (patch) | |
| tree | 9fef0047e070c977463a85d5cbd0f9479694d286 /mm/hugetlb.c | |
| parent | Driver core: add device_create_vargs and device_create_drvdata (diff) | |
| download | linux-19051c5035d217e572672a2ca9db06c1cef50e9b.tar.xz linux-19051c5035d217e572672a2ca9db06c1cef50e9b.zip | |
mm: bdi: fix race in bdi_class device creation
There is a race from when a device is created with device_create() and
then the drvdata is set with a call to dev_set_drvdata() in which a
sysfs file could be open, yet the drvdata will be NULL, causing all
sorts of bad things to happen.
This patch fixes the problem by using the new function,
device_create_vargs().
Many thanks to Arthur Jones <ajones@riverbed.com> for reporting the bug,
and testing patches out.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Arthur Jones <ajones@riverbed.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'mm/hugetlb.c')
0 files changed, 0 insertions, 0 deletions