diff options
| -rw-r--r-- | hw/usb/dev-mtp.c | 62 |
1 files changed, 34 insertions, 28 deletions
diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c index 06e376bcd2..91b820baaf 100644 --- a/hw/usb/dev-mtp.c +++ b/hw/usb/dev-mtp.c @@ -1135,11 +1135,19 @@ static MTPData *usb_mtp_get_object_prop_value(MTPState *s, MTPControl *c, return d; } -/* Return correct return code for a delete event */ +/* + * Return values when object @o is deleted. + * If at least one of the deletions succeeded, + * DELETE_SUCCESS is set and if at least one + * of the deletions failed, DELETE_FAILURE is + * set. Both bits being set (DELETE_PARTIAL) + * signifies a RES_PARTIAL_DELETE being sent + * back to the initiator. + */ enum { - ALL_DELETE, - PARTIAL_DELETE, - READ_ONLY, + DELETE_SUCCESS = (1 << 0), + DELETE_FAILURE = (1 << 1), + DELETE_PARTIAL = (DELETE_FAILURE | DELETE_SUCCESS), }; /* Assumes that children, if any, have been already freed */ @@ -1155,8 +1163,7 @@ static void usb_mtp_object_free_one(MTPState *s, MTPObject *o) static int usb_mtp_deletefn(MTPState *s, MTPObject *o, uint32_t trans) { MTPObject *iter, *iter2; - bool partial_delete = false; - bool success = false; + int ret = 0; /* * TODO: Add support for Protection Status @@ -1165,34 +1172,28 @@ static int usb_mtp_deletefn(MTPState *s, MTPObject *o, uint32_t trans) QLIST_FOREACH(iter, &o->children, list) { if (iter->format == FMT_ASSOCIATION) { QLIST_FOREACH(iter2, &iter->children, list) { - usb_mtp_deletefn(s, iter2, trans); + ret |= usb_mtp_deletefn(s, iter2, trans); } } } if (o->format == FMT_UNDEFINED_OBJECT) { if (remove(o->path)) { - partial_delete = true; + ret |= DELETE_FAILURE; } else { usb_mtp_object_free_one(s, o); - success = true; + ret |= DELETE_SUCCESS; } } else if (o->format == FMT_ASSOCIATION) { if (rmdir(o->path)) { - partial_delete = true; + ret |= DELETE_FAILURE; } else { usb_mtp_object_free_one(s, o); - success = true; + ret |= DELETE_SUCCESS; } } - if (success && partial_delete) { - return PARTIAL_DELETE; - } - if (!success && partial_delete) { - return READ_ONLY; - } - return ALL_DELETE; + return ret; } static void usb_mtp_object_delete(MTPState *s, uint32_t handle, @@ -1226,19 +1227,24 @@ static void usb_mtp_object_delete(MTPState *s, uint32_t handle, } ret = usb_mtp_deletefn(s, o, trans); - if (ret == PARTIAL_DELETE) { - usb_mtp_queue_result(s, RES_PARTIAL_DELETE, - trans, 0, 0, 0, 0); - return; - } else if (ret == READ_ONLY) { - usb_mtp_queue_result(s, RES_STORE_READ_ONLY, trans, - 0, 0, 0, 0); - return; - } else { + switch (ret) { + case DELETE_SUCCESS: usb_mtp_queue_result(s, RES_OK, trans, 0, 0, 0, 0); - return; + break; + case DELETE_FAILURE: + usb_mtp_queue_result(s, RES_PARTIAL_DELETE, + trans, 0, 0, 0, 0); + break; + case DELETE_PARTIAL: + usb_mtp_queue_result(s, RES_PARTIAL_DELETE, + trans, 0, 0, 0, 0); + break; + default: + g_assert_not_reached(); } + + return; } static void usb_mtp_command(MTPState *s, MTPControl *c) |