1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index 103b617cdc31..35e6e271b219 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -762,6 +762,8 @@ static int pf_detect(void)
 
         printk("%s: No ATAPI disk detected\n", name);
         for (pf = units, unit = 0; unit < PF_UNITS; pf++, unit++) {
+                if (!pf->disk)
+                        continue;
                 blk_cleanup_queue(pf->disk->queue);
                 pf->disk->queue = NULL;
                 blk_mq_free_tag_set(&pf->tag_set);
@@ -1029,8 +1031,13 @@ static int __init pf_init(void)
         pf_busy = 0;
 
         if (register_blkdev(major, name)) {
-                for (pf = units, unit = 0; unit < PF_UNITS; pf++, unit++)
+                for (pf = units, unit = 0; unit < PF_UNITS; pf++, unit++) {
+                        if (!pf->disk)
+                                continue;
+                        blk_cleanup_queue(pf->disk->queue);
+                        blk_mq_free_tag_set(&pf->tag_set);
                         put_disk(pf->disk);
+                }
                 return -EBUSY;
         }
 
@@ -1051,6 +1058,9 @@ static void __exit pf_exit(void)
         int unit;
         unregister_blkdev(major, name);
         for (pf = units, unit = 0; unit < PF_UNITS; pf++, unit++) {
+                if (!pf->disk)
+                        continue;
+
                 if (pf->present)
                         del_gendisk(pf->disk);