hyperv: Fix RNDIS send_completion code path
authorHaiyang Zhang <haiyangz@microsoft.com>
Fri, 5 Apr 2013 11:44:40 +0000 (11:44 +0000)
committerDavid S. Miller <davem@davemloft.net>
Mon, 8 Apr 2013 16:15:17 +0000 (12:15 -0400)
commitf1ea3cd70110d482ef1ce6ef158df113aa366f43
treeead600ab71402db00476255f4ed7f1d723eacdd3
parentfd5c07a8d6a10c7112b19f3b0d428627c62b06ab
hyperv: Fix RNDIS send_completion code path

In some cases, the VM_PKT_COMP message can arrive later than RNDIS completion
message, which will free the packet memory. This may cause panic due to access
to freed memory in netvsc_send_completion().

This patch fixes this problem by removing rndis_filter_send_request_completion()
from the code path. The function was a no-op.

Reported-by: Long Li <longli@microsoft.com>
Tested-by: Long Li <longli@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/hyperv/netvsc.c
drivers/net/hyperv/rndis_filter.c