diff options
Diffstat (limited to 'drivers/ide/ide-tape.c')
| -rw-r--r-- | drivers/ide/ide-tape.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 6962ca4891a..789f3428f07 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -322,23 +322,29 @@ static struct class *idetape_sysfs_class; #define ide_tape_g(disk) \ container_of((disk)->private_data, struct ide_tape_obj, driver) +static void ide_tape_release(struct kref *); + static struct ide_tape_obj *ide_tape_get(struct gendisk *disk) { struct ide_tape_obj *tape = NULL; mutex_lock(&idetape_ref_mutex); tape = ide_tape_g(disk); - if (tape) + if (tape) { kref_get(&tape->kref); + if (ide_device_get(tape->drive)) { + kref_put(&tape->kref, ide_tape_release); + tape = NULL; + } + } mutex_unlock(&idetape_ref_mutex); return tape; } -static void ide_tape_release(struct kref *); - static void ide_tape_put(struct ide_tape_obj *tape) { mutex_lock(&idetape_ref_mutex); + ide_device_put(tape->drive); kref_put(&tape->kref, ide_tape_release); mutex_unlock(&idetape_ref_mutex); } |