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authorSaurabh Sengar <ssengar@linux.microsoft.com>2022-06-09 10:16:36 -0700
committerWei Liu <wei.liu@kernel.org>2022-06-10 08:41:28 +0000
commit656c5ba50b7172a0ea25dc1b37606bd51d01fe8d (patch)
treeaa2dc5c0a31545a18ee6a7a21ac684438d4f25d8 /drivers/hv
parentf5f93d7f5a5cbfef02609dead21e7056e83f4fab (diff)
Drivers: hv: vmbus: Release cpu lock in error case
In case of invalid sub channel, release cpu lock before returning. Fixes: a949e86c0d780 ("Drivers: hv: vmbus: Resolve race between init_vp_index() and CPU hotplug") Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/1654794996-13244-1-git-send-email-ssengar@linux.microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/channel_mgmt.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 280b52927758..5b120402d405 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -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.