4 files changed, 47 insertions, 13 deletions

diff --git a/drivers/base/component.c b/drivers/base/component.c
index c53efe6c6d8e..c4778995cd72 100644
--- a/drivers/base/component.c
+++ b/drivers/base/component.c
@@ -133,9 +133,16 @@ static int try_to_bring_up_master(struct master *master,
 			goto out;
 		}
 
+		if (!devres_open_group(master->dev, NULL, GFP_KERNEL)) {
+			ret = -ENOMEM;
+			goto out;
+		}
+
 		/* Found all components */
 		ret = master->ops->bind(master->dev);
 		if (ret < 0) {
+			devres_release_group(master->dev, NULL);
+			dev_info(master->dev, "master bind failed: %d\n", ret);
 			master_remove_components(master);
 			goto out;
 		}
@@ -166,6 +173,7 @@ static void take_down_master(struct master *master)
 {
 	if (master->bound) {
 		master->ops->unbind(master->dev);
+		devres_release_group(master->dev, NULL);
 		master->bound = false;
 	}
 
diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 545c4de412c3..db4e264eecb6 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -791,6 +791,32 @@ void * devm_kmalloc(struct device *dev, size_t size, gfp_t gfp)
 EXPORT_SYMBOL_GPL(devm_kmalloc);
 
 /**
+ * devm_kstrdup - Allocate resource managed space and
+ *                copy an existing string into that.
+ * @dev: Device to allocate memory for
+ * @s: the string to duplicate
+ * @gfp: the GFP mask used in the devm_kmalloc() call when
+ *       allocating memory
+ * RETURNS:
+ * Pointer to allocated string on success, NULL on failure.
+ */
+char *devm_kstrdup(struct device *dev, const char *s, gfp_t gfp)
+{
+	size_t size;
+	char *buf;
+
+	if (!s)
+		return NULL;
+
+	size = strlen(s) + 1;
+	buf = devm_kmalloc(dev, size, gfp);
+	if (buf)
+		memcpy(buf, s, size);
+	return buf;
+}
+EXPORT_SYMBOL_GPL(devm_kstrdup);
+
+/**
  * devm_kfree - Resource-managed kfree
  * @dev: Device this memory belongs to
  * @p: Memory to free
diff --git a/drivers/base/dma-buf.c b/drivers/base/dma-buf.c
index 1e16cbd61da2..61d6d62cc0d3 100644
--- a/drivers/base/dma-buf.c
+++ b/drivers/base/dma-buf.c
@@ -616,36 +616,35 @@ static int dma_buf_describe(struct seq_file *s)
 	if (ret)
 		return ret;
 
-	seq_printf(s, "\nDma-buf Objects:\n");
-	seq_printf(s, "\texp_name\tsize\tflags\tmode\tcount\n");
+	seq_puts(s, "\nDma-buf Objects:\n");
+	seq_puts(s, "size\tflags\tmode\tcount\texp_name\n");
 
 	list_for_each_entry(buf_obj, &db_list.head, list_node) {
 		ret = mutex_lock_interruptible(&buf_obj->lock);
 
 		if (ret) {
-			seq_printf(s,
-				  "\tERROR locking buffer object: skipping\n");
+			seq_puts(s,
+				 "\tERROR locking buffer object: skipping\n");
 			continue;
 		}
 
-		seq_printf(s, "\t");
-
-		seq_printf(s, "\t%s\t%08zu\t%08x\t%08x\t%08ld\n",
-				buf_obj->exp_name, buf_obj->size,
+		seq_printf(s, "%08zu\t%08x\t%08x\t%08ld\t%s\n",
+				buf_obj->size,
 				buf_obj->file->f_flags, buf_obj->file->f_mode,
-				(long)(buf_obj->file->f_count.counter));
+				(long)(buf_obj->file->f_count.counter),
+				buf_obj->exp_name);
 
-		seq_printf(s, "\t\tAttached Devices:\n");
+		seq_puts(s, "\tAttached Devices:\n");
 		attach_count = 0;
 
 		list_for_each_entry(attach_obj, &buf_obj->attachments, node) {
-			seq_printf(s, "\t\t");
+			seq_puts(s, "\t");
 
-			seq_printf(s, "%s\n", attach_obj->dev->init_name);
+			seq_printf(s, "%s\n", dev_name(attach_obj->dev));
 			attach_count++;
 		}
 
-		seq_printf(s, "\n\t\tTotal %d devices attached\n",
+		seq_printf(s, "Total %d devices attached\n\n",
 				attach_count);
 
 		count++;
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 8a97ddfa6122..c30df50e4440 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -1580,6 +1580,7 @@ static int fw_pm_notify(struct notifier_block *notify_block,
 	switch (mode) {
 	case PM_HIBERNATION_PREPARE:
 	case PM_SUSPEND_PREPARE:
+	case PM_RESTORE_PREPARE:
 		kill_requests_without_uevent();
 		device_cache_fw_images();
 		break;