Merge tag 'for-linus-20121009' of git://git.infradead.org/mtd-2.6

Pull MTD updates from David Woodhouse:

 - Disable broken mtdchar mmap() on MMU systems
 - Additional ECC tests for NAND flash, and some test cleanups
 - New NAND and SPI chip support
 - Fixes/cleanup for SH FLCTL NAND controller driver
 - Improved hardware support for GPMI NAND controller
 - Conversions to device-tree support for various drivers
 - Removal of obsolete drivers (sbc8xxx, bcmring, etc.)
 - New LPC32xx drivers for MLC and SLC NAND
 - Further cleanup of NAND OOB/ECC handling
 - UAPI cleanup merge from David Howells (just moving files, since MTD
   headers were sorted out long ago to separate user-visible from kernel
   bits)

* tag 'for-linus-20121009' of git://git.infradead.org/mtd-2.6: (168 commits)
  mtd: Disable mtdchar mmap on MMU systems
  UAPI: (Scripted) Disintegrate include/mtd
  mtd: nand: detect Samsung K9GBG08U0A, K9GAG08U0F ID
  mtd: nand: decode Hynix MLC, 6-byte ID length
  mtd: nand: increase max OOB size to 640
  mtd: nand: add generic READ ID length calculation functions
  mtd: nand: split simple ID decode into its own function
  mtd: nand: split extended ID decoding into its own function
  mtd: nand: split BB marker options decoding into its own function
  mtd: nand: remove redundant ID read
  mtd: nand: remove unnecessary variable
  mtd: docg4: add missing HAS_IOMEM dependency
  mtd: gpmi: initialize the timing registers only one time
  mtd: gpmi: add EDO feature for imx6q
  mtd: gpmi: do not set the default values for the extra clocks
  mtd: gpmi: simplify the DLL setting code
  mtd: gpmi: add a new field for HW_GPMI_CTRL1
  mtd: gpmi: do not get the clock frequency in gpmi_begin()
  mtd: gpmi: add a new field for HW_GPMI_TIMING1
  mtd: add helpers to get the supportted ONFI timing mode
  ...

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 73ae81a629f..82c06165d3d 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -1162,7 +1162,11 @@ static int mtdchar_mmap(struct file *file, struct vm_area_struct *vma)
 	resource_size_t start, off;
 	unsigned long len, vma_len;
 
-	if (mtd->type == MTD_RAM || mtd->type == MTD_ROM) {
+        /* This is broken because it assumes the MTD device is map-based
+	   and that mtd->priv is a valid struct map_info.  It should be
+	   replaced with something that uses the mtd_get_unmapped_area()
+	   operation properly. */
+	if (0 /*mtd->type == MTD_RAM || mtd->type == MTD_ROM*/) {
 		off = get_vm_offset(vma);
 		start = map->phys;
 		len = PAGE_ALIGN((start & ~PAGE_MASK) + map->size);