Commit f5cf8f07 authored by David Woodhouse's avatar David Woodhouse

mtd: Disable mtdchar mmap on MMU systems

This code was broken because it assumed that all MTD devices were map-based.
Disable it for now, until it can be fixed properly for the next merge window.
Signed-off-by: default avatarDavid Woodhouse <>
parent ffe31501
......@@ -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);
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment