Modernization

[elogind.git] / src / core / device.c

diff --git a/src/core/device.c b/src/core/device.c
index 0b01718ad4bc0ada8f79aa56f51b201319ba6c89..25af2cb2d59533c66c63686c6b75295dd8b1308a 100644 (file)
--- a/src/core/device.c
+++ b/src/core/device.c
@@ -124,13 +124,13 @@ static void device_dump(Unit *u, FILE *f, const char *prefix) {
                 prefix, strna(d->sysfs));
 }
 
-static UnitActiveState device_active_state(Unit *u) {
+_pure_ static UnitActiveState device_active_state(Unit *u) {
         assert(u);
 
         return state_translation_table[DEVICE(u)->state];
 }
 
-static const char *device_sub_state_to_string(Unit *u) {
+_pure_ static const char *device_sub_state_to_string(Unit *u) {
         assert(u);
 
         return device_state_to_string(DEVICE(u)->state);
@@ -189,10 +189,12 @@ static int device_update_unit(Manager *m, struct udev_device *dev, const char *p
 
         assert(m);
 
-        if (!(sysfs = udev_device_get_syspath(dev)))
+        sysfs = udev_device_get_syspath(dev);
+        if (!sysfs)
                 return -ENOMEM;
 
-        if ((r = device_find_escape_name(m, path, &u)) < 0)
+        r = device_find_escape_name(m, path, &u);
+        if (r < 0)
                 return r;
 
         if (u && DEVICE(u)->sysfs && !path_equal(DEVICE(u)->sysfs, sysfs))
@@ -234,17 +236,21 @@ static int device_update_unit(Manager *m, struct udev_device *dev, const char *p
                 first = hashmap_get(m->devices_by_sysfs, sysfs);
                 LIST_PREPEND(Device, same_sysfs, first, DEVICE(u));
 
-                if ((r = hashmap_replace(m->devices_by_sysfs, DEVICE(u)->sysfs, first)) < 0)
+                r = hashmap_replace(m->devices_by_sysfs, DEVICE(u)->sysfs, first);
+                if (r < 0)
                         goto fail;
         }
 
         if ((model = udev_device_get_property_value(dev, "ID_MODEL_FROM_DATABASE")) ||
             (model = udev_device_get_property_value(dev, "ID_MODEL"))) {
-                if ((r = unit_set_description(u, model)) < 0)
+                r = unit_set_description(u, model);
+                if (r < 0)
                         goto fail;
-        } else
-                if ((r = unit_set_description(u, path)) < 0)
+        } else {
+                r = unit_set_description(u, path);
+                if (r < 0)
                         goto fail;
+        }
 
         if (main) {
                 /* The additional systemd udev properties we only
@@ -257,7 +263,7 @@ static int device_update_unit(Manager *m, struct udev_device *dev, const char *p
                         size_t l;
 
                         FOREACH_WORD_QUOTED(w, l, alias, state) {
-                                char *e;
+                                _cleanup_free_ char *e;
 
                                 e = strndup(w, l);
                                 if (!e) {
@@ -265,13 +271,10 @@ static int device_update_unit(Manager *m, struct udev_device *dev, const char *p
                                         goto fail;
                                 }
 
-                                if (!is_path(e)) {
-                                        log_warning("SYSTEMD_ALIAS for %s is not a path, ignoring: %s", sysfs, e);
-                                        free(e);
-                                } else {
+                                if (is_path(e))
                                         device_update_unit(m, dev, e, false);
-                                        free(e);
-                                }
+                                else
+                                        log_warning("SYSTEMD_ALIAS for %s is not a path, ignoring: %s", sysfs, e);
                         }
                 }
 
@@ -281,7 +284,7 @@ static int device_update_unit(Manager *m, struct udev_device *dev, const char *p
                         size_t l;
 
                         FOREACH_WORD_QUOTED(w, l, wants, state) {
-                                char *e;
+                                _cleanup_free_ char *e, *n = NULL;
 
                                 e = strndup(w, l);
                                 if (!e) {
@@ -289,8 +292,13 @@ static int device_update_unit(Manager *m, struct udev_device *dev, const char *p
                                         goto fail;
                                 }
 
-                                r = unit_add_dependency_by_name(u, UNIT_WANTS, e, NULL, true);
-                                free(e);
+                                n = unit_name_mangle(e);
+                                if (!n) {
+                                        r = -ENOMEM;
+                                        goto fail;
+                                }
+
+                                r = unit_add_dependency_by_name(u, UNIT_WANTS, n, NULL, true);
                                 if (r < 0)
                                         goto fail;
                         }
@@ -312,6 +320,7 @@ fail:
 static int device_process_new_device(Manager *m, struct udev_device *dev, bool update_state) {
         const char *sysfs, *dn;
         struct udev_list_entry *item = NULL, *first = NULL;
+        int r;
 
         assert(m);
 
@@ -319,7 +328,9 @@ static int device_process_new_device(Manager *m, struct udev_device *dev, bool u
                 return -ENOMEM;
 
         /* Add the main unit named after the sysfs path */
-        device_update_unit(m, dev, sysfs, true);
+        r = device_update_unit(m, dev, sysfs, true);
+        if (r < 0)
+                return r;
 
         /* Add an additional unit for the device node */
         if ((dn = udev_device_get_devnode(dev)))
@@ -477,7 +488,6 @@ static void device_shutdown(Manager *m) {
 }
 
 static int device_enumerate(Manager *m) {
-        struct epoll_event ev;
         int r;
         struct udev_enumerate *e = NULL;
         struct udev_list_entry *item = NULL, *first = NULL;
@@ -485,6 +495,8 @@ static int device_enumerate(Manager *m) {
         assert(m);
 
         if (!m->udev) {
+                struct epoll_event ev;
+
                 if (!(m->udev = udev_new()))
                         return -ENOMEM;