diff options
Diffstat (limited to 'drivers/android')
| -rw-r--r-- | drivers/android/binder.c | 5 | ||||
| -rw-r--r-- | drivers/android/binder_internal.h | 13 |
2 files changed, 17 insertions, 1 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c index a6b2082c24f8..3069a0bad50f 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -5221,7 +5221,7 @@ static int binder_open(struct inode *nodp, struct file *filp) proc->default_priority = task_nice(current); /* binderfs stashes devices in i_private */ if (is_binderfs_device(nodp)) { - binder_dev = nodp->i_private; + binder_dev = binderfs_device_get(nodp->i_private); info = nodp->i_sb->s_fs_info; binder_binderfs_dir_entry_proc = info->proc_log_dir; } else { @@ -5405,6 +5405,7 @@ static int binder_node_release(struct binder_node *node, int refs) static void binder_deferred_release(struct binder_proc *proc) { struct binder_context *context = proc->context; + struct binder_device *device; struct rb_node *n; int threads, nodes, incoming_refs, outgoing_refs, active_transactions; @@ -5484,6 +5485,8 @@ static void binder_deferred_release(struct binder_proc *proc) outgoing_refs, active_transactions); binder_proc_dec_tmpref(proc); + device = container_of(proc->context, struct binder_device, context); + binderfs_device_put(device); } static void binder_deferred_func(struct work_struct *work) diff --git a/drivers/android/binder_internal.h b/drivers/android/binder_internal.h index ae991097d14d..73941d3382f3 100644 --- a/drivers/android/binder_internal.h +++ b/drivers/android/binder_internal.h @@ -35,6 +35,19 @@ struct binder_device { struct inode *binderfs_inode; }; +static inline struct binder_device *binderfs_device_get(struct binder_device *dev) +{ + if (dev->binderfs_inode) + ihold(dev->binderfs_inode); + return dev; +} + +static inline void binderfs_device_put(struct binder_device *dev) +{ + if (dev->binderfs_inode) + iput(dev->binderfs_inode); +} + /** * binderfs_mount_opts - mount options for binderfs * @max: maximum number of allocatable binderfs binder devices |