qed: remove redundant assignments to rc

The variable rc is assigned with a value that is never read and
it is re-assigned a new value later on. The assignment is redundant
and can be removed. Clean up multiple occurrances of this pattern.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/ethernet/qlogic/qed/qed_sp_commands.c

···
 	u8 sb_index = p_hwfn->p_eq->eq_sb_index;
 	struct qed_spq_entry *p_ent = NULL;
 	struct qed_sp_init_data init_data;
-	int rc = -EINVAL;
 	u8 page_cnt, i;
+	int rc;
 
 	/* update initial eq producer */
 	qed_eq_prod_update(p_hwfn,
···
 {
 	struct qed_spq_entry *p_ent = NULL;
 	struct qed_sp_init_data init_data;
-	int rc = -EINVAL;
+	int rc;
 
 	/* Get SPQ entry */
 	memset(&init_data, 0, sizeof(init_data));
···
 {
 	struct qed_spq_entry *p_ent = NULL;
 	struct qed_sp_init_data init_data;
-	int rc = -EOPNOTSUPP;
+	int rc;
 
 	if (p_hwfn->ufp_info.pri_type == QED_UFP_PRI_UNKNOWN) {
 		DP_INFO(p_hwfn, "Invalid priority type %d\n",
···
 {
 	struct qed_spq_entry *p_ent = NULL;
 	struct qed_sp_init_data init_data;
-	int rc = -EINVAL;
+	int rc;
 
 	if (IS_VF(p_hwfn->cdev))
 		return qed_vf_pf_tunnel_param_update(p_hwfn, p_tunn);
···
 {
 	struct qed_spq_entry *p_ent = NULL;
 	struct qed_sp_init_data init_data;
-	int rc = -EINVAL;
+	int rc;
 
 	/* Get SPQ entry */
 	memset(&init_data, 0, sizeof(init_data));