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| author | Saurabh Sengar <ssengar@linux.microsoft.com> | 2022-06-09 20:16:36 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-22 15:13:16 +0300 |
| commit | 5334455067d51ea043d302a1d052db9b8af4832e (patch) | |
| tree | 778a7d5137eb322ab11e6bb8f07f69579cbd8034 /drivers/hv | |
| parent | 814092927a215f5ca6c08249ec72a205e0b473cd (diff) | |
| download | linux-5334455067d51ea043d302a1d052db9b8af4832e.tar.xz | |
Drivers: hv: vmbus: Release cpu lock in error case
[ Upstream commit 656c5ba50b7172a0ea25dc1b37606bd51d01fe8d ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/channel_mgmt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index 5dbb949b1afd..10188b1a6a08 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -606,6 +606,7 @@ 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. |