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path: root/drivers/s390/block/dcssblk.c
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Diffstat (limited to 'drivers/s390/block/dcssblk.c')
-rw-r--r--drivers/s390/block/dcssblk.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 93b80da60277..c0f85ffb2b62 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -636,6 +636,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
dev_info->gd->minors = DCSSBLK_MINORS_PER_DISK;
dev_info->gd->fops = &dcssblk_devops;
dev_info->gd->private_data = dev_info;
+ dev_info->gd->flags |= GENHD_FL_NO_PART;
blk_queue_logical_block_size(dev_info->gd->queue, 4096);
blk_queue_flag_set(QUEUE_FLAG_DAX, dev_info->gd->queue);
@@ -864,6 +865,8 @@ dcssblk_submit_bio(struct bio *bio)
unsigned long bytes_done;
bio = bio_split_to_limits(bio);
+ if (!bio)
+ return;
bytes_done = 0;
dev_info = bio->bi_bdev->bd_disk->private_data;