diff options
| author | Greg Kroah-Hartman <gregkh@suse.de> | 2008-05-17 00:55:12 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-05-20 20:31:54 (GMT) |
| commit | 716ad8750a3ffe6b458d52da2d1c01cbf3e2f60d (patch) | |
| tree | 786bb3c6a6e499927f78062db456e05c98347dce /drivers/ide | |
| parent | 8b485877e0b9eb23c3579f50cca165f75442c6cc (diff) | |
| download | linux-716ad8750a3ffe6b458d52da2d1c01cbf3e2f60d.tar.xz | |
ide: fix race in device_create
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_drvdata().
Cc: Kay Sievers <kay.sievers@vrfy.org>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/ide')
| -rw-r--r-- | drivers/ide/ide-probe.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 34b0d4f..655ec7e 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -648,13 +648,12 @@ static int ide_register_port(ide_hwif_t *hwif) get_device(&hwif->gendev); - hwif->portdev = device_create(ide_port_class, &hwif->gendev, - MKDEV(0, 0), hwif->name); + hwif->portdev = device_create_drvdata(ide_port_class, &hwif->gendev, + MKDEV(0, 0), hwif, hwif->name); if (IS_ERR(hwif->portdev)) { ret = PTR_ERR(hwif->portdev); device_unregister(&hwif->gendev); } - dev_set_drvdata(hwif->portdev, hwif); out: return ret; } |