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| author | Greg Kroah-Hartman <gregkh@suse.de> | 2008-05-16 17:55:12 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-05-20 13:31:56 -0700 |
| commit | 24b42566c3fcbb5a9011d1446783d0f5844ccd45 (patch) | |
| tree | 0e1de28631d02446580adf5fbb98feb981b20b5a /drivers/scsi/osst.c | |
| parent | c013d040b70bc2bff5465917ebb255a70b650396 (diff) | |
| download | kernel-common-24b42566c3fcbb5a9011d1446783d0f5844ccd45.tar.gz kernel-common-24b42566c3fcbb5a9011d1446783d0f5844ccd45.tar.bz2 kernel-common-24b42566c3fcbb5a9011d1446783d0f5844ccd45.zip | |
SCSI: 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(). It fixes the problem in all of the scsi
drivers that need it.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Doug Gilbert <dgilbert@interlog.com>
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/scsi/osst.c')
| -rw-r--r-- | drivers/scsi/osst.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c index 31f7aec44d90..243d8becd30f 100644 --- a/drivers/scsi/osst.c +++ b/drivers/scsi/osst.c @@ -5695,13 +5695,12 @@ static int osst_sysfs_add(dev_t dev, struct device *device, struct osst_tape * S struct device *osst_member; int err; - osst_member = device_create(osst_sysfs_class, device, dev, "%s", name); + osst_member = device_create_drvdata(osst_sysfs_class, device, dev, STp, "%s", name); if (IS_ERR(osst_member)) { printk(KERN_WARNING "osst :W: Unable to add sysfs class member %s\n", name); return PTR_ERR(osst_member); } - dev_set_drvdata(osst_member, STp); err = device_create_file(osst_member, &dev_attr_ADR_rev); if (err) goto err_out; |