bnxt_en: devlink health: use retained error fmsg API

Drop unneeded error checking.

devlink_fmsg_*() family of functions is now retaining errors,
so there is no need to check for them after each call.
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c

@@ -104,20 +104,21 @@ static int bnxt_fw_diagnose(struct devlink_health_reporter *reporter,
 	struct bnxt *bp = devlink_health_reporter_priv(reporter);
 	struct bnxt_fw_health *h = bp->fw_health;
 	u32 fw_status, fw_resets;
-	int rc;
 
-	if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
-		return devlink_fmsg_string_pair_put(fmsg, "Status", "recovering");
+	if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
+		devlink_fmsg_string_pair_put(fmsg, "Status", "recovering");
+		return 0;
+	}
 
-	if (!h->status_reliable)
-		return devlink_fmsg_string_pair_put(fmsg, "Status", "unknown");
+	if (!h->status_reliable) {
+		devlink_fmsg_string_pair_put(fmsg, "Status", "unknown");
+		return 0;
+	}
 
 	mutex_lock(&h->lock);
 	fw_status = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
 	if (BNXT_FW_IS_BOOTING(fw_status)) {
-		rc = devlink_fmsg_string_pair_put(fmsg, "Status", "initializing");
-		if (rc)
-			goto unlock;
+		devlink_fmsg_string_pair_put(fmsg, "Status", "initializing");
 	} else if (h->severity || fw_status != BNXT_FW_STATUS_HEALTHY) {
 		if (!h->severity) {
 			h->severity = SEVERITY_FATAL;
@@ -126,58 +127,35 @@ static int bnxt_fw_diagnose(struct devlink_health_reporter *reporter,
 			devlink_health_report(h->fw_reporter,
 					      "FW error diagnosed", h);
 		}
-		rc = devlink_fmsg_string_pair_put(fmsg, "Status", "error");
-		if (rc)
-			goto unlock;
-		rc = devlink_fmsg_u32_pair_put(fmsg, "Syndrome", fw_status);
-		if (rc)
-			goto unlock;
+		devlink_fmsg_string_pair_put(fmsg, "Status", "error");
+		devlink_fmsg_u32_pair_put(fmsg, "Syndrome", fw_status);
 	} else {
-		rc = devlink_fmsg_string_pair_put(fmsg, "Status", "healthy");
-		if (rc)
-			goto unlock;
+		devlink_fmsg_string_pair_put(fmsg, "Status", "healthy");
 	}
 
-	rc = devlink_fmsg_string_pair_put(fmsg, "Severity",
-					  bnxt_health_severity_str(h->severity));
-	if (rc)
-		goto unlock;
+	devlink_fmsg_string_pair_put(fmsg, "Severity",
+				     bnxt_health_severity_str(h->severity));
 
 	if (h->severity) {
-		rc = devlink_fmsg_string_pair_put(fmsg, "Remedy",
-						  bnxt_health_remedy_str(h->remedy));
-		if (rc)
-			goto unlock;
-		if (h->remedy == REMEDY_DEVLINK_RECOVER) {
-			rc = devlink_fmsg_string_pair_put(fmsg, "Impact",
-							  "traffic+ntuple_cfg");
-			if (rc)
-				goto unlock;
-		}
+		devlink_fmsg_string_pair_put(fmsg, "Remedy",
+					     bnxt_health_remedy_str(h->remedy));
+		if (h->remedy == REMEDY_DEVLINK_RECOVER)
+			devlink_fmsg_string_pair_put(fmsg, "Impact",
+						     "traffic+ntuple_cfg");
 	}
 
-unlock:
 	mutex_unlock(&h->lock);
-	if (rc || !h->resets_reliable)
-		return rc;
+	if (!h->resets_reliable)
+		return 0;
 
 	fw_resets = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
-	rc = devlink_fmsg_u32_pair_put(fmsg, "Resets", fw_resets);
-	if (rc)
-		return rc;
-	rc = devlink_fmsg_u32_pair_put(fmsg, "Arrests", h->arrests);
-	if (rc)
-		return rc;
-	rc = devlink_fmsg_u32_pair_put(fmsg, "Survivals", h->survivals);
-	if (rc)
-		return rc;
-	rc = devlink_fmsg_u32_pair_put(fmsg, "Discoveries", h->discoveries);
-	if (rc)
-		return rc;
-	rc = devlink_fmsg_u32_pair_put(fmsg, "Fatalities", h->fatalities);
-	if (rc)
-		return rc;
-	return devlink_fmsg_u32_pair_put(fmsg, "Diagnoses", h->diagnoses);
+	devlink_fmsg_u32_pair_put(fmsg, "Resets", fw_resets);
+	devlink_fmsg_u32_pair_put(fmsg, "Arrests", h->arrests);
+	devlink_fmsg_u32_pair_put(fmsg, "Survivals", h->survivals);
+	devlink_fmsg_u32_pair_put(fmsg, "Discoveries", h->discoveries);
+	devlink_fmsg_u32_pair_put(fmsg, "Fatalities", h->fatalities);
+	devlink_fmsg_u32_pair_put(fmsg, "Diagnoses", h->diagnoses);
+	return 0;
 }
 
 static int bnxt_fw_dump(struct devlink_health_reporter *reporter,
@@ -203,19 +181,12 @@ static int bnxt_fw_dump(struct devlink_health_reporter *reporter,
 
 	rc = bnxt_get_coredump(bp, BNXT_DUMP_LIVE, data, &dump_len);
 	if (!rc) {
-		rc = devlink_fmsg_pair_nest_start(fmsg, "core");
-		if (rc)
-			goto exit;
-		rc = devlink_fmsg_binary_pair_put(fmsg, "data", data, dump_len);
-		if (rc)
-			goto exit;
-		rc = devlink_fmsg_u32_pair_put(fmsg, "size", dump_len);
-		if (rc)
-			goto exit;
-		rc = devlink_fmsg_pair_nest_end(fmsg);
+		devlink_fmsg_pair_nest_start(fmsg, "core");
+		devlink_fmsg_binary_pair_put(fmsg, "data", data, dump_len);
+		devlink_fmsg_u32_pair_put(fmsg, "size", dump_len);
+		devlink_fmsg_pair_nest_end(fmsg);
 	}
 
-exit:
 	vfree(data);
 	return rc;
 }