From: Zhao Liu <zhao1.liu@intel.com>
Date: Thu, 18 Apr 2024 10:04:33 +0000 (+0800)
Subject: hw/cxl/cxl-cdat: Make cxl_doe_cdat_init() return boolean
X-Git-Tag: qemu-xen-4.20.0~176^2~8
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=e0ddabc6d4cfef4a5c7f154f0b0ad00dbf9a18d0;p=qemu-xen.git

hw/cxl/cxl-cdat: Make cxl_doe_cdat_init() return boolean

As error.h suggested, the best practice for callee is to return
something to indicate success / failure.

With returned boolean, there's no need to dereference @errp to check
failure case.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-ID: <20240418100433.1085447-4-zhao1.liu@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---

diff --git a/hw/cxl/cxl-cdat.c b/hw/cxl/cxl-cdat.c
index e7bc1380bf..959a55518e 100644
--- a/hw/cxl/cxl-cdat.c
+++ b/hw/cxl/cxl-cdat.c
@@ -189,14 +189,14 @@ static bool ct3_load_cdat(CDATObject *cdat, Error **errp)
     return true;
 }
 
-void cxl_doe_cdat_init(CXLComponentState *cxl_cstate, Error **errp)
+bool cxl_doe_cdat_init(CXLComponentState *cxl_cstate, Error **errp)
 {
     CDATObject *cdat = &cxl_cstate->cdat;
 
     if (cdat->filename) {
-        ct3_load_cdat(cdat, errp);
+        return ct3_load_cdat(cdat, errp);
     } else {
-        ct3_build_cdat(cdat, errp);
+        return ct3_build_cdat(cdat, errp);
     }
 }
 
diff --git a/hw/mem/cxl_type3.c b/hw/mem/cxl_type3.c
index b0a7e9f11b..3e42490b6c 100644
--- a/hw/mem/cxl_type3.c
+++ b/hw/mem/cxl_type3.c
@@ -705,8 +705,7 @@ static void ct3_realize(PCIDevice *pci_dev, Error **errp)
     cxl_cstate->cdat.build_cdat_table = ct3_build_cdat_table;
     cxl_cstate->cdat.free_cdat_table = ct3_free_cdat_table;
     cxl_cstate->cdat.private = ct3d;
-    cxl_doe_cdat_init(cxl_cstate, errp);
-    if (*errp) {
+    if (!cxl_doe_cdat_init(cxl_cstate, errp)) {
         goto err_free_special_ops;
     }
 
diff --git a/hw/pci-bridge/cxl_upstream.c b/hw/pci-bridge/cxl_upstream.c
index 783fa6adac..e51221a5f3 100644
--- a/hw/pci-bridge/cxl_upstream.c
+++ b/hw/pci-bridge/cxl_upstream.c
@@ -338,8 +338,7 @@ static void cxl_usp_realize(PCIDevice *d, Error **errp)
     cxl_cstate->cdat.build_cdat_table = build_cdat_table;
     cxl_cstate->cdat.free_cdat_table = free_default_cdat_table;
     cxl_cstate->cdat.private = d;
-    cxl_doe_cdat_init(cxl_cstate, errp);
-    if (*errp) {
+    if (!cxl_doe_cdat_init(cxl_cstate, errp)) {
         goto err_cap;
     }
 
diff --git a/include/hw/cxl/cxl_component.h b/include/hw/cxl/cxl_component.h
index 5012fab6f7..945ee6ffd0 100644
--- a/include/hw/cxl/cxl_component.h
+++ b/include/hw/cxl/cxl_component.h
@@ -273,7 +273,7 @@ hwaddr cxl_decode_ig(int ig);
 CXLComponentState *cxl_get_hb_cstate(PCIHostState *hb);
 bool cxl_get_hb_passthrough(PCIHostState *hb);
 
-void cxl_doe_cdat_init(CXLComponentState *cxl_cstate, Error **errp);
+bool cxl_doe_cdat_init(CXLComponentState *cxl_cstate, Error **errp);
 void cxl_doe_cdat_release(CXLComponentState *cxl_cstate);
 void cxl_doe_cdat_update(CXLComponentState *cxl_cstate, Error **errp);