memstick: ms_block: Add error handling support for add_disk()

We never checked for errors on add_disk() as this function returned void.
Now that this is fixed, use the shiny new error handling.

Contrary to the typical removal which delays the put_disk() until later,
since we are failing on a probe we immediately put the disk on failure from
add_disk by using blk_cleanup_disk().

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20210902174105.2418771-3-mcgrof@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c
index acf36676e388d3877ead24d3158ade8473fc4e61..772edbdc9587b75d6e77e060bb96e5f38367fe63 100644 (file)
--- a/drivers/memstick/core/ms_block.c
+++ b/drivers/memstick/core/ms_block.c
@@ -2156,10 +2156,14 @@ static int msb_init_disk(struct memstick_dev *card)
                set_disk_ro(msb->disk, 1);
 
        msb_start(card);
-       device_add_disk(&card->dev, msb->disk, NULL);
+       rc = device_add_disk(&card->dev, msb->disk, NULL);
+       if (rc)
+               goto out_cleanup_disk;
        dbg("Disk added");
        return 0;
 
+out_cleanup_disk:
+       blk_cleanup_disk(msb->disk);
 out_free_tag_set:
        blk_mq_free_tag_set(&msb->tag_set);
 out_release_id: