| Message ID | 20170823171032.30529-4-hch@lst.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/block/genhd.c b/block/genhd.c index 2367087cdb7c..3380a1e73ea0 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -1357,6 +1357,13 @@ struct gendisk *alloc_disk_node(int minors, int node_id) struct gendisk *disk; struct disk_part_tbl *ptbl; + if (minors > DISK_MAX_PARTS) { + printk(KERN_ERR + "block: can't allocated more than %d partitions\n", + DISK_MAX_PARTS); + minors = DISK_MAX_PARTS; + } + disk = kzalloc_node(sizeof(struct gendisk), GFP_KERNEL, node_id); if (disk) { if (!init_part_stats(&disk->part0)) {
Signed-off-by: Christoph Hellwig <hch@lst.de> --- block/genhd.c | 7 +++++++ 1 file changed, 7 insertions(+)