From 5b4478f5dabb7f764e2fce480b47204e06095a73 Mon Sep 17 00:00:00 2001 From: Herton Ronaldo Krzesinski Date: Mon, 27 Aug 2012 20:56:54 -0300 Subject: floppy: properly handle failure on add_disk loop commit d60e7ec18c3fb2cbf90969ccd42889eb2d03aef9 upstream. On floppy initialization, if something failed inside the loop we call add_disk, there was no cleanup of previous iterations in the error handling. Signed-off-by: Herton Ronaldo Krzesinski Signed-off-by: Jiri Kosina Signed-off-by: Jens Axboe [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings --- drivers/block/floppy.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'drivers/block') diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index a6c3d180ba65..7a90d4ae6e52 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4305,7 +4305,7 @@ static int __init floppy_init(void) err = platform_device_register(&floppy_device[drive]); if (err) - goto out_flush_work; + goto out_remove_drives; err = device_create_file(&floppy_device[drive].dev, &dev_attr_cmos); @@ -4323,6 +4323,15 @@ static int __init floppy_init(void) out_unreg_platform_dev: platform_device_unregister(&floppy_device[drive]); +out_remove_drives: + while (drive--) { + if ((allowed_drive_mask & (1 << drive)) && + fdc_state[FDC(drive)].version != FDC_NONE) { + del_gendisk(disks[drive]); + device_remove_file(&floppy_device[drive].dev, &dev_attr_cmos); + platform_device_unregister(&floppy_device[drive]); + } + } out_flush_work: flush_work_sync(&floppy_work); if (atomic_read(&usage_count)) -- cgit v1.2.3