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-rw-r--r--block/ioctl.c7
-rw-r--r--fs/partitions/check.c40
2 files changed, 23 insertions, 24 deletions
diff --git a/block/ioctl.c b/block/ioctl.c
index c722de0ef2ee..eb046aeede8a 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -43,12 +43,9 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
43 || pstart < 0 || plength < 0) 43 || pstart < 0 || plength < 0)
44 return -EINVAL; 44 return -EINVAL;
45 } 45 }
46 /* partition number in use? */ 46
47 mutex_lock(&bdev->bd_mutex); 47 mutex_lock(&bdev->bd_mutex);
48 if (disk->part[part - 1]) { 48
49 mutex_unlock(&bdev->bd_mutex);
50 return -EBUSY;
51 }
52 /* overlap? */ 49 /* overlap? */
53 for (i = 0; i < disk->minors - 1; i++) { 50 for (i = 0; i < disk->minors - 1; i++) {
54 struct hd_struct *s = disk->part[i]; 51 struct hd_struct *s = disk->part[i];
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 68f3e41ae66f..16f98d824608 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -300,15 +300,6 @@ struct device_type part_type = {
300 .release = part_release, 300 .release = part_release,
301}; 301};
302 302
303static inline void partition_sysfs_add_subdir(struct hd_struct *p)
304{
305 struct kobject *k;
306
307 k = kobject_get(&p->dev.kobj);
308 p->holder_dir = kobject_create_and_add("holders", k);
309 kobject_put(k);
310}
311
312static inline void disk_sysfs_add_subdirs(struct gendisk *disk) 303static inline void disk_sysfs_add_subdirs(struct gendisk *disk)
313{ 304{
314 struct kobject *k; 305 struct kobject *k;
@@ -347,13 +338,16 @@ int add_partition(struct gendisk *disk, int part, sector_t start, sector_t len,
347 struct hd_struct *p; 338 struct hd_struct *p;
348 int err; 339 int err;
349 340
341 if (disk->part[part - 1])
342 return -EBUSY;
343
350 p = kzalloc(sizeof(*p), GFP_KERNEL); 344 p = kzalloc(sizeof(*p), GFP_KERNEL);
351 if (!p) 345 if (!p)
352 return -ENOMEM; 346 return -ENOMEM;
353 347
354 if (!init_part_stats(p)) { 348 if (!init_part_stats(p)) {
355 err = -ENOMEM; 349 err = -ENOMEM;
356 goto out0; 350 goto out_free;
357 } 351 }
358 p->start_sect = start; 352 p->start_sect = start;
359 p->nr_sects = len; 353 p->nr_sects = len;
@@ -372,34 +366,42 @@ int add_partition(struct gendisk *disk, int part, sector_t start, sector_t len,
372 p->dev.class = &block_class; 366 p->dev.class = &block_class;
373 p->dev.type = &part_type; 367 p->dev.type = &part_type;
374 p->dev.parent = &disk->dev; 368 p->dev.parent = &disk->dev;
375 disk->part[part-1] = p;
376 369
377 /* delay uevent until 'holders' subdir is created */ 370 /* delay uevent until 'holders' subdir is created */
378 p->dev.uevent_suppress = 1; 371 p->dev.uevent_suppress = 1;
379 err = device_add(&p->dev); 372 err = device_add(&p->dev);
380 if (err) 373 if (err)
381 goto out1; 374 goto out_put;
382 partition_sysfs_add_subdir(p); 375
376 err = -ENOMEM;
377 p->holder_dir = kobject_create_and_add("holders", &p->dev.kobj);
378 if (!p->holder_dir)
379 goto out_del;
380
383 p->dev.uevent_suppress = 0; 381 p->dev.uevent_suppress = 0;
384 if (flags & ADDPART_FLAG_WHOLEDISK) { 382 if (flags & ADDPART_FLAG_WHOLEDISK) {
385 err = device_create_file(&p->dev, &dev_attr_whole_disk); 383 err = device_create_file(&p->dev, &dev_attr_whole_disk);
386 if (err) 384 if (err)
387 goto out2; 385 goto out_del;
388 } 386 }
389 387
388 /* everything is up and running, commence */
389 disk->part[part - 1] = p;
390
390 /* suppress uevent if the disk supresses it */ 391 /* suppress uevent if the disk supresses it */
391 if (!disk->dev.uevent_suppress) 392 if (!disk->dev.uevent_suppress)
392 kobject_uevent(&p->dev.kobj, KOBJ_ADD); 393 kobject_uevent(&p->dev.kobj, KOBJ_ADD);
393 394
394 return 0; 395 return 0;
395 396
396out2: 397out_free:
398 kfree(p);
399 return err;
400out_del:
401 kobject_put(p->holder_dir);
397 device_del(&p->dev); 402 device_del(&p->dev);
398out1: 403out_put:
399 put_device(&p->dev); 404 put_device(&p->dev);
400 free_part_stats(p);
401out0:
402 kfree(p);
403 return err; 405 return err;
404} 406}
405 407