jffs2: do not support the MLC nand

[Linux-MTD Mailing List]

Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=e104f1e9dab6726187810f5d9e06cadb946d4a61
Commit:     e104f1e9dab6726187810f5d9e06cadb946d4a61
Parent:     f48372465ffdff62a6d75a6f34bc850855fb6470
Author:     Huang Shijie <b32955 at freescale.com>
AuthorDate: Wed Sep 25 14:58:20 2013 +0800
Committer:  Brian Norris <computersforpeace at gmail.com>
CommitDate: Sun Oct 27 16:27:07 2013 -0700

    jffs2: do not support the MLC nand
    
    We should not support the MLC nand for jffs2. So if the nand type is
    MLC, we quit immediatly.
    
    Signed-off-by: Huang Shijie <b32955 at freescale.com>
    Signed-off-by: Brian Norris <computersforpeace at gmail.com>
---
 fs/jffs2/fs.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index fe3c052..09b3ed4 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -515,6 +515,10 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
 
 	c = JFFS2_SB_INFO(sb);
 
+	/* Do not support the MLC nand */
+	if (c->mtd->type == MTD_MLCNANDFLASH)
+		return -EINVAL;
+
 #ifndef CONFIG_JFFS2_FS_WRITEBUFFER
 	if (c->mtd->type == MTD_NANDFLASH) {
 		pr_err("Cannot operate on NAND flash unless jffs2 NAND support is compiled in\n");