diff options
| -rw-r--r-- | hw/usb/dev-mtp.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c index 943f930..c2750e4 100644 --- a/hw/usb/dev-mtp.c +++ b/hw/usb/dev-mtp.c @@ -109,7 +109,8 @@ struct MTPObject { struct stat stat; MTPObject *parent; MTPObject **children; - int32_t nchildren; + uint32_t nchildren; + bool have_children; QTAILQ_ENTRY(MTPObject) next; }; @@ -273,7 +274,6 @@ static MTPObject *usb_mtp_object_alloc(MTPState *s, uint32_t handle, o->handle = handle; o->parent = parent; o->name = g_strdup(name); - o->nchildren = -1; if (parent == NULL) { o->path = g_strdup(name); } else { @@ -340,7 +340,11 @@ static void usb_mtp_object_readdir(MTPState *s, MTPObject *o) struct dirent *entry; DIR *dir; - o->nchildren = 0; + if (o->have_children) { + return; + } + o->have_children = true; + dir = opendir(o->path); if (!dir) { return; @@ -789,9 +793,7 @@ static void usb_mtp_command(MTPState *s, MTPControl *c) c->trans, 0, 0, 0); return; } - if (o->nchildren == -1) { - usb_mtp_object_readdir(s, o); - } + usb_mtp_object_readdir(s, o); if (c->code == CMD_GET_NUM_OBJECTS) { trace_usb_mtp_op_get_num_objects(s->dev.addr, o->handle, o->path); nres = 1; |