genlmsg_multicast_allns now returns the correct statuses when a
message is sent to a listener. However in the case of adding a
device we want to wait for the listener otherwise we may miss the
the device during startup.
Signed-off-by: Cathy Avery <cav...@redhat.com>
---
drivers/target/target_core_user.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/target/target_core_user.c
b/drivers/target/target_core_user.c
index 5831e0eecea1..2d3f8f5403d8 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -1794,11 +1794,12 @@ static int tcmu_netlink_event_send(struct tcmu_dev
*udev,
ret = genlmsg_multicast_allns(&tcmu_genl_family, skb, 0,
TCMU_MCGRP_CONFIG, GFP_KERNEL);
- /* We don't care if no one is listening */
- if (ret == -ESRCH)
- ret = 0;
- if (!ret)
- ret = tcmu_wait_genl_cmd_reply(udev);
+
+ /* Wait during an add as the listener may not be up yet */
+ if (ret == 0 ||
+ (ret == -ESRCH && cmd == TCMU_CMD_ADDED_DEVICE))
+ return tcmu_wait_genl_cmd_reply(udev);
+
return ret;
}
--
2.19.1
