floppy: 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.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20210927220302.1073499-6-mcgrof@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index acde3cb..3873e78 100644 (file)
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4697,8 +4697,10 @@ static int __init do_floppy_init(void)
 
                registered[drive] = true;
 
-               device_add_disk(&floppy_device[drive].dev, disks[drive][0],
-                               NULL);
+               err = device_add_disk(&floppy_device[drive].dev,
+                                     disks[drive][0], NULL);
+               if (err)
+                       goto out_remove_drives;
        }
 
        return 0;