Instead of calling del_gendisk() on exit alone, let's add
a registration bool to the floppy disk state, this way this can
be done on the shared caller, swim_cleanup_floppy_disk().
This will be more useful in subsequent patches. Right now, this
just shuffles functionality out to a helper in a safe way.
Signed-off-by: Luis Chamberlain <mcgrof@xxxxxxxxxx>
---
drivers/block/swim.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index 3deb9d9a59c0..b3ee3dad5a8c 100644
--- a/drivers/block/swim.c
+++ b/drivers/block/swim.c
@@ -184,6 +184,7 @@ struct floppy_state {
int track;
int ref_count;
+ bool registered;
struct gendisk *disk;
struct blk_mq_tag_set tag_set;
@@ -778,6 +779,9 @@ static void swim_cleanup_floppy_disk(struct floppy_state *fs)
if (!disk)
return;
+ if (fs->registered)
+ del_gendisk(fs->disk);
+
blk_cleanup_disk(disk);
blk_mq_free_tag_set(&fs->tag_set);
}
@@ -839,6 +843,7 @@ static int swim_floppy_init(struct swim_priv *swd)
swd->unit[drive].disk->private_data = &swd->unit[drive];
set_capacity(swd->unit[drive].disk, 2880);
add_disk(swd->unit[drive].disk);
+ swd->unit[drive].registered = true;
}
return 0;
@@ -915,10 +920,8 @@ static int swim_remove(struct platform_device *dev)
int drive;
struct resource *res;
- for (drive = 0; drive < swd->floppy_count; drive++) {
- del_gendisk(swd->unit[drive].disk);
+ for (drive = 0; drive < swd->floppy_count; drive++)
swim_cleanup_floppy_disk(&swd->unit[drive]);
- }
unregister_blkdev(FLOPPY_MAJOR, "fd");
--
2.30.2
