staging: hv: remove ASSERT() and return -EINVAL in NetVsc.c

return -EINVAL instead of calling ASSERT()

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Hank Janssen <hjanssen@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/hv/NetVsc.c b/drivers/staging/hv/NetVsc.c
index ddde391..f852984 100644
--- a/drivers/staging/hv/NetVsc.c
+++ b/drivers/staging/hv/NetVsc.c
@@ -354,7 +354,11 @@
 		DPRINT_EXIT(NETVSC);
 		return -1;
 	}
-	ASSERT(netDevice->SendBufferSize > 0);
+	if (netDevice->SendBufferSize <= 0) {
+		ret = -EINVAL;
+		goto Cleanup;
+	}
+
 	/* page-size grandularity */
 	/* ASSERT((netDevice->SendBufferSize & (PAGE_SIZE - 1)) == 0); */