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path: root/drivers/block/paride/pcd.c
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Diffstat (limited to 'drivers/block/paride/pcd.c')
-rw-r--r--drivers/block/paride/pcd.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c
index 377a694dc228..6d415b20fb70 100644
--- a/drivers/block/paride/pcd.c
+++ b/drivers/block/paride/pcd.c
@@ -314,6 +314,7 @@ static void pcd_init_units(void)
disk->queue = blk_mq_init_sq_queue(&cd->tag_set, &pcd_mq_ops,
1, BLK_MQ_F_SHOULD_MERGE);
if (IS_ERR(disk->queue)) {
+ put_disk(disk);
disk->queue = NULL;
continue;
}
@@ -750,6 +751,8 @@ static int pcd_detect(void)
printk("%s: No CD-ROM drive found\n", name);
for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) {
+ if (!cd->disk)
+ continue;
blk_cleanup_queue(cd->disk->queue);
cd->disk->queue = NULL;
blk_mq_free_tag_set(&cd->tag_set);
@@ -1010,8 +1013,14 @@ static int __init pcd_init(void)
pcd_probe_capabilities();
if (register_blkdev(major, name)) {
- for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++)
+ for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) {
+ if (!cd->disk)
+ continue;
+
+ blk_cleanup_queue(cd->disk->queue);
+ blk_mq_free_tag_set(&cd->tag_set);
put_disk(cd->disk);
+ }
return -EBUSY;
}
@@ -1032,6 +1041,9 @@ static void __exit pcd_exit(void)
int unit;
for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) {
+ if (!cd->disk)
+ continue;
+
if (cd->present) {
del_gendisk(cd->disk);
pi_release(cd->pi);