fm10k: do not use enum as boolean

Check for actual value NETREG_UNINITIALIZED in case it ever changes from
the current value of zero.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_main.c b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
index 2f47bfe..537d81a 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_main.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
@@ -1905,7 +1905,7 @@
 	u32 reta, base;
 
 	/* If the netdev is initialized we have to maintain table if possible */
-	if (interface->netdev->reg_state) {
+	if (interface->netdev->reg_state != NETREG_UNINITIALIZED) {
 		for (i = FM10K_RETA_SIZE; i--;) {
 			reta = interface->reta[i];
 			if ((((reta << 24) >> 24) < rss_i) &&