From: Artem B. Bityuckiy <dedekind@infradead.org>
Date: Tue, 12 Jul 2005 16:37:12 +0000 (+0100)
Subject: [JFFS2] Init locks early during mount
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b62205986a73a40e4fc174d2ef668e3895e925bc;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[JFFS2] Init locks early during mount

In case of a mount error locks might be uninitialized but
accessed by the resulting call to jffs2_kill_sb().

Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/fs/jffs2/build.c b/fs/jffs2/build.c
index 3dd5394921c9..97dc39796e2c 100644
--- a/fs/jffs2/build.c
+++ b/fs/jffs2/build.c
@@ -7,7 +7,7 @@
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: build.c,v 1.70 2005/02/28 08:21:05 dedekind Exp $
+ * $Id: build.c,v 1.71 2005/07/12 16:37:08 dedekind Exp $
  *
  */
 
@@ -336,13 +336,6 @@ int jffs2_do_mount_fs(struct jffs2_sb_info *c)
 		c->blocks[i].bad_count = 0;
 	}
 
-	init_MUTEX(&c->alloc_sem);
-	init_MUTEX(&c->erase_free_sem);
-	init_waitqueue_head(&c->erase_wait);
-	init_waitqueue_head(&c->inocache_wq);
-	spin_lock_init(&c->erase_completion_lock);
-	spin_lock_init(&c->inocache_lock);
-
 	INIT_LIST_HEAD(&c->clean_list);
 	INIT_LIST_HEAD(&c->very_dirty_list);
 	INIT_LIST_HEAD(&c->dirty_list);
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index 2cf14cf8b35a..aaf9475cfb6a 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -7,7 +7,7 @@
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: super.c,v 1.106 2005/05/18 11:37:25 dedekind Exp $
+ * $Id: super.c,v 1.107 2005/07/12 16:37:08 dedekind Exp $
  *
  */
 
@@ -140,6 +140,15 @@ static struct super_block *jffs2_get_sb_mtd(struct file_system_type *fs_type,
 	D1(printk(KERN_DEBUG "jffs2_get_sb_mtd(): New superblock for device %d (\"%s\")\n",
 		  mtd->index, mtd->name));
 
+	/* Initialize JFFS2 superblock locks, the further initialization will be
+	 * done later */
+	init_MUTEX(&c->alloc_sem);
+	init_MUTEX(&c->erase_free_sem);
+	init_waitqueue_head(&c->erase_wait);
+	init_waitqueue_head(&c->inocache_wq);
+	spin_lock_init(&c->erase_completion_lock);
+	spin_lock_init(&c->inocache_lock);
+
 	sb->s_op = &jffs2_super_operations;
 	sb->s_flags = flags | MS_NOATIME;