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[v4,11/12] jffs2: do not support the MLC nand

Message ID 1380092301-21924-12-git-send-email-b32955@freescale.com
State New, archived
Headers show

Commit Message

Huang Shijie Sept. 25, 2013, 6:58 a.m. UTC 
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@freescale.com>
---
 fs/jffs2/fs.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
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Patch

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");