Commit 656c5ba5 authored by Saurabh Sengar's avatar Saurabh Sengar Committed by Wei Liu
Browse files

Drivers: hv: vmbus: Release cpu lock in error case 



In case of invalid sub channel, release cpu lock before returning.

Fixes: a949e86c ("Drivers: hv: vmbus: Resolve race between init_vp_index() and CPU hotplug")
Signed-off-by: default avatarSaurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: default avatarMichael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/1654794996-13244-1-git-send-email-ssengar@linux.microsoft.com


Signed-off-by: default avatarWei Liu <wei.liu@kernel.org>
parent f5f93d7f

drivers/hv/channel_mgmt.c

+1 −0
Original line number Diff line number Diff line
@@ -639,6 +639,7 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel) 
		 */

		if (newchannel->offermsg.offer.sub_channel_index == 0) {

			mutex_unlock(&vmbus_connection.channel_mutex);

			cpus_read_unlock();

			/*

			 * Don't call free_channel(), because newchannel->kobj

			 * is not initialized yet.