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[SCSI] st: clean up dev cleanup in st_probe

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st_probe leaves a cdev pointer hanging around that is compared
during the error path and freed later. There's no need for the pointer
to hang around at all. So we free it immediately and simplify the error
handling.

Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Acked-by: Kai Mäkisara <kai.makisara@kolumbus.fi>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Jeff Mahoney 2012-08-18 15:20:38 -04:00 committed by James Bottomley
parent af23782bef
commit e3f2a9cc84
1 changed files with 4 additions and 7 deletions
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11
drivers/scsi/st.c
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@ -4156,6 +4156,7 @@ static int st_probe(struct device *dev)
printk(KERN_ERR
"st%d: out of memory. Device not attached.\n",
dev_num);
cdev_del(cdev);
goto out_free_tape;
}
cdev->owner = THIS_MODULE;
@ -4194,17 +4195,13 @@ static int st_probe(struct device *dev)
"tape");
for (j=0; j < 2; j++) {
if (STm->cdevs[j]) {
if (cdev == STm->cdevs[j])
cdev = NULL;
device_destroy(&st_sysfs_class,
MKDEV(SCSI_TAPE_MAJOR,
TAPE_MINOR(i, mode, j)));
device_destroy(&st_sysfs_class,
MKDEV(SCSI_TAPE_MAJOR,
TAPE_MINOR(i, mode, j)));
cdev_del(STm->cdevs[j]);
}
}
}
if (cdev)
cdev_del(cdev);
write_lock(&st_dev_arr_lock);
scsi_tapes[dev_num] = NULL;
st_nr_dev--;