commit 6712cc9c22117a8af9f3df272b4a44fd2e4201cd
author Stephen Hemminger <stephen@networkplumber.org> Mon Aug 20 21:16:40 2018 +0000
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Wed Sep 12 09:31:00 2018 +0200
tree a611d54ecc7834995fc5f3371d8ccdb1ba652a79
parent 029d727b4f5d7c82f78e0395a0d220271c2f92b8

vmbus: don't return values for uninitalized channels

For unsupported device types, the vmbus channel ringbuffer is never
initialized, and therefore reading the sysfs files will return garbage
or cause a kernel OOPS.

Fixes: c2e5df616e1a ("vmbus: add per-channel sysfs info")

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: <stable@vger.kernel.org> # 4.15
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>