1 files changed, 34 insertions, 17 deletions

diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index 1a84bc0d5fa8..6877080c8af9 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -46,7 +46,7 @@ static int __init early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
 }
 
 /**
- * res_mem_save_node() - save fdt node for second pass initialization
+ * fdt_reserved_mem_save_node() - save fdt node for second pass initialization
  */
 void __init fdt_reserved_mem_save_node(unsigned long node, const char *uname,
 				      phys_addr_t base, phys_addr_t size)
@@ -68,8 +68,8 @@ void __init fdt_reserved_mem_save_node(unsigned long node, const char *uname,
 }
 
 /**
- * res_mem_alloc_size() - allocate reserved memory described by 'size', 'align'
- *			  and 'alloc-ranges' properties
+ * __reserved_mem_alloc_size() - allocate reserved memory described by
+ *	'size', 'align'  and 'alloc-ranges' properties.
  */
 static int __init __reserved_mem_alloc_size(unsigned long node,
 	const char *uname, phys_addr_t *res_base, phys_addr_t *res_size)
@@ -165,7 +165,7 @@ static const struct of_device_id __rmem_of_table_sentinel
 	__used __section(__reservedmem_of_table_end);
 
 /**
- * res_mem_init_node() - call region specific reserved memory init code
+ * __reserved_mem_init_node() - call region specific reserved memory init code
  */
 static int __init __reserved_mem_init_node(struct reserved_mem *rmem)
 {
@@ -232,7 +232,7 @@ static void __init __rmem_check_for_overlap(void)
 }
 
 /**
- * fdt_init_reserved_mem - allocate and init all saved reserved memory regions
+ * fdt_init_reserved_mem() - allocate and init all saved reserved memory regions
  */
 void __init fdt_init_reserved_mem(void)
 {
@@ -358,6 +358,25 @@ int of_reserved_mem_device_init_by_idx(struct device *dev,
 EXPORT_SYMBOL_GPL(of_reserved_mem_device_init_by_idx);
 
 /**
+ * of_reserved_mem_device_init_by_name() - assign named reserved memory region
+ *					   to given device
+ * @dev: pointer to the device to configure
+ * @np: pointer to the device node with 'memory-region' property
+ * @name: name of the selected memory region
+ *
+ * Returns: 0 on success or a negative error-code on failure.
+ */
+int of_reserved_mem_device_init_by_name(struct device *dev,
+					struct device_node *np,
+					const char *name)
+{
+	int idx = of_property_match_string(np, "memory-region-names", name);
+
+	return of_reserved_mem_device_init_by_idx(dev, np, idx);
+}
+EXPORT_SYMBOL_GPL(of_reserved_mem_device_init_by_name);
+
+/**
  * of_reserved_mem_device_release() - release reserved memory device structures
  * @dev:	Pointer to the device to deconfigure
  *
@@ -366,24 +385,22 @@ EXPORT_SYMBOL_GPL(of_reserved_mem_device_init_by_idx);
  */
 void of_reserved_mem_device_release(struct device *dev)
 {
-	struct rmem_assigned_device *rd;
-	struct reserved_mem *rmem = NULL;
+	struct rmem_assigned_device *rd, *tmp;
+	LIST_HEAD(release_list);
 
 	mutex_lock(&of_rmem_assigned_device_mutex);
-	list_for_each_entry(rd, &of_rmem_assigned_device_list, list) {
-		if (rd->dev == dev) {
-			rmem = rd->rmem;
-			list_del(&rd->list);
-			kfree(rd);
-			break;
-		}
+	list_for_each_entry_safe(rd, tmp, &of_rmem_assigned_device_list, list) {
+		if (rd->dev == dev)
+			list_move_tail(&rd->list, &release_list);
 	}
 	mutex_unlock(&of_rmem_assigned_device_mutex);
 
-	if (!rmem || !rmem->ops || !rmem->ops->device_release)
-		return;
+	list_for_each_entry_safe(rd, tmp, &release_list, list) {
+		if (rd->rmem && rd->rmem->ops && rd->rmem->ops->device_release)
+			rd->rmem->ops->device_release(rd->rmem, dev);
 
-	rmem->ops->device_release(rmem, dev);
+		kfree(rd);
+	}
 }
 EXPORT_SYMBOL_GPL(of_reserved_mem_device_release);