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(parent: 029d727) | patch
vmbus: don't return values for uninitalized channels
authorStephen Hemminger <stephen@networkplumber.org>
Mon, 20 Aug 2018 21:16:40 +0000 (21:16 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 12 Sep 2018 07:31:00 +0000 (09:31 +0200)
commit6712cc9c22117a8af9f3df272b4a44fd2e4201cd
treea611d54ecc7834995fc5f3371d8ccdb1ba652a79tree | snapshot
parent029d727b4f5d7c82f78e0395a0d220271c2f92b8commit | diff
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>
drivers/hv/vmbus_drv.c diff | blob | history
Domain: System / Kernel;