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cifs: refcount only the selected iface during interface update
commit 7246210 upstream. When the server interface for a channel is not active anymore, we have the logic to select an alternative interface. However this was not breaking out of the loop as soon as a new alternative was found. As a result, some interfaces may get refcounted unintentionally. There was also a bug in checking if we found an alternate iface. Fixed that too. Fixes: b54034a ("cifs: during reconnect, update interface if necessary") Cc: stable@vger.kernel.org # 5.19+ Signed-off-by: Shyam Prasad N <sprasad@microsoft.com> Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz> Signed-off-by: Steve French <stfrench@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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