Commit 04ebd4ae authored by Abdel Benamrouche's avatar Abdel Benamrouche Committed by Linus Torvalds

block/ioctl.c and fs/partition/check.c: check value returned by add_partition()

Now that add_partition() has been aught to propagate errors, let's check them.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: default avatarAbdel Benamrouche <draconux@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d805dda4
......@@ -17,6 +17,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
long long start, length;
int part;
int i;
int err;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
......@@ -61,9 +62,9 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
}
}
/* all seems OK */
add_partition(disk, part, start, length, ADDPART_FLAG_NONE);
err = add_partition(disk, part, start, length, ADDPART_FLAG_NONE);
mutex_unlock(&bdev->bd_mutex);
return 0;
return err;
case BLKPG_DEL_PARTITION:
if (!disk->part[part-1])
return -ENXIO;
......
......@@ -499,10 +499,16 @@ int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
if (!size)
continue;
if (from + size > get_capacity(disk)) {
printk(" %s: p%d exceeds device capacity\n",
printk(KERN_ERR " %s: p%d exceeds device capacity\n",
disk->disk_name, p);
continue;
}
res = add_partition(disk, p, from, size, state->parts[p].flags);
if (res) {
printk(KERN_ERR " %s: p%d could not be added: %d\n",
disk->disk_name, p, -res);
continue;
}
add_partition(disk, p, from, size, state->parts[p].flags);
#ifdef CONFIG_BLK_DEV_MD
if (state->parts[p].flags & ADDPART_FLAG_RAID)
md_autodetect_dev(bdev->bd_dev+p);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment