4.14-stable review patch. If anyone has any objections, please let me know.
------------------ From: Takashi Iwai <[email protected]> commit b19b46346f483ae055fa027cb2d5c2ca91484b91 upstream. The recent commit 916c5e1413be ("hv/netvsc: fix handling of fallback to single queue mode") tried to fix the fallback behavior to a single queue mode, but it changed the function to return zero incorrectly, while the function should return an object pointer. Eventually this leads to a NULL dereference at the callers that expect non-NULL value. Fix it by returning the proper net_device object. Fixes: 916c5e1413be ("hv/netvsc: fix handling of fallback to single queue mode") Signed-off-by: Takashi Iwai <[email protected]> Reviewed-by: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]> Cc: Alakesh Haloi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/net/hyperv/rndis_filter.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/hyperv/rndis_filter.c +++ b/drivers/net/hyperv/rndis_filter.c @@ -1299,7 +1299,7 @@ out: /* setting up multiple channels failed */ net_device->max_chn = 1; net_device->num_chn = 1; - return 0; + return net_device; err_dev_remv: rndis_filter_device_remove(dev, net_device);
