node_device: udevGetStringSysfsAttr() to void

udevGetStringSysfsAttr() return value is invariant, so change it
type and remove all dependent checks.

Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>

diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c
index 8d38aec070dae7041b7f3d2a394026a2bad78935..faddbef92949a6d2a783c703c9289ce37f9088ac 100644 (file)
--- a/src/node_device/node_device_udev.c
+++ b/src/node_device/node_device_udev.c
@@ -245,7 +245,7 @@ udevGetDeviceSysfsAttr(struct udev_device *udev_device,
 }
 
 
-static int
+static void
 udevGetStringSysfsAttr(struct udev_device *udev_device,
                        const char *attr_name,
                        char **value)
@@ -256,8 +256,6 @@ udevGetStringSysfsAttr(struct udev_device *udev_device,
 
     if (*value != NULL && (STREQ(*value, "")))
         VIR_FREE(*value);
-
-    return 0;
 }
 
 
@@ -536,10 +534,10 @@ udevProcessUSBDevice(struct udev_device *device,
                           "ID_VENDOR_FROM_DATABASE",
                           &usb_dev->vendor_name);
 
-    if (!usb_dev->vendor_name &&
+    if (!usb_dev->vendor_name) {
         udevGetStringSysfsAttr(device, "manufacturer",
-                               &usb_dev->vendor_name) < 0)
-        return -1;
+                               &usb_dev->vendor_name);
+    }
 
     if (udevGetUintProperty(device, "ID_MODEL_ID", &usb_dev->product, 16) < 0)
         return -1;
@@ -548,10 +546,10 @@ udevProcessUSBDevice(struct udev_device *device,
                           "ID_MODEL_FROM_DATABASE",
                           &usb_dev->product_name);
 
-    if (!usb_dev->product_name &&
+    if (!usb_dev->product_name) {
         udevGetStringSysfsAttr(device, "product",
-                               &usb_dev->product_name) < 0)
-        return -1;
+                               &usb_dev->product_name);
+    }
 
     udevGenerateDeviceName(device, def, NULL);
 
@@ -602,9 +600,7 @@ udevProcessNetworkInterface(struct udev_device *device,
 
     udevGetStringProperty(device, "INTERFACE", &net->ifname);
 
-    if (udevGetStringSysfsAttr(device, "address",
-                               &net->address) < 0)
-        return -1;
+    udevGetStringSysfsAttr(device, "address", &net->address);
 
     if (udevGetUintSysfsAttr(device, "addr_len", &net->address_len, 0) < 0)
         return -1;
@@ -898,8 +894,7 @@ udevProcessDASD(struct udev_device *device,
 {
     virNodeDevCapStorage *storage = &def->caps->data.storage;
 
-    if (udevGetStringSysfsAttr(device, "device/uid", &storage->serial) < 0)
-        return -1;
+    udevGetStringSysfsAttr(device, "device/uid", &storage->serial);
 
     return udevProcessDisk(device, def);
 }
@@ -972,13 +967,11 @@ udevProcessStorage(struct udev_device *device,
     udevGetStringProperty(device, "ID_BUS", &storage->bus);
     udevGetStringProperty(device, "ID_SERIAL", &storage->serial);
 
-    if (udevGetStringSysfsAttr(device, "device/vendor", &storage->vendor) < 0)
-        goto cleanup;
+    udevGetStringSysfsAttr(device, "device/vendor", &storage->vendor);
     if (def->caps->data.storage.vendor)
         virTrimSpaces(def->caps->data.storage.vendor, NULL);
 
-    if (udevGetStringSysfsAttr(device, "device/model", &storage->model) < 0)
-        goto cleanup;
+    udevGetStringSysfsAttr(device, "device/model", &storage->model);
     if (def->caps->data.storage.model)
         virTrimSpaces(def->caps->data.storage.model, NULL);
     /* There is no equivalent of the hotpluggable property in libudev,
@@ -1951,31 +1944,17 @@ udevGetDMIData(virNodeDevCapSystem *syscap)
         }
     }
 
-    if (udevGetStringSysfsAttr(device, "product_name",
-                               &syscap->product_name) < 0)
-        goto cleanup;
-    if (udevGetStringSysfsAttr(device, "sys_vendor",
-                               &hardware->vendor_name) < 0)
-        goto cleanup;
-    if (udevGetStringSysfsAttr(device, "product_version",
-                               &hardware->version) < 0)
-        goto cleanup;
-    if (udevGetStringSysfsAttr(device, "product_serial",
-                               &hardware->serial) < 0)
-        goto cleanup;
+    udevGetStringSysfsAttr(device, "product_name", &syscap->product_name);
+    udevGetStringSysfsAttr(device, "sys_vendor", &hardware->vendor_name);
+    udevGetStringSysfsAttr(device, "product_version", &hardware->version);
+    udevGetStringSysfsAttr(device, "product_serial", &hardware->serial);
 
     if (virGetHostUUID(hardware->uuid))
         goto cleanup;
 
-    if (udevGetStringSysfsAttr(device, "bios_vendor",
-                               &firmware->vendor_name) < 0)
-        goto cleanup;
-    if (udevGetStringSysfsAttr(device, "bios_version",
-                               &firmware->version) < 0)
-        goto cleanup;
-    if (udevGetStringSysfsAttr(device, "bios_date",
-                               &firmware->release_date) < 0)
-        goto cleanup;
+    udevGetStringSysfsAttr(device, "bios_vendor", &firmware->vendor_name);
+    udevGetStringSysfsAttr(device, "bios_version", &firmware->version);
+    udevGetStringSysfsAttr(device, "bios_date", &firmware->release_date);
 
  cleanup:
     if (device != NULL)