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mtd: maps: gpio-addr-flash: Fix ioremapped size 

We should only iomap the area of the chip that is memory mapped.
Otherwise we could be mapping devices beyond the memory space or that
belong to other devices.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Fixes: ebd71e3a48 ("mtd: maps: gpio-addr-flash: fix warnings and make more portable")
Cc: <stable@vger.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
This commit is contained in:
Ricardo Ribalda Delgado 2018-10-04 15:01:04 +02:00 committed by Boris Brezillon
parent 34cb1e3189
commit 6c925b3333
1 changed files with 1 additions and 1 deletions
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2
drivers/mtd/maps/gpio-addr-flash.c
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@ -234,7 +234,7 @@ static int gpio_flash_probe(struct platform_device *pdev)
state->map.copy_to = gf_copy_to;
state->map.bankwidth = pdata->width;
state->map.size = state->win_size * (1 << state->gpio_count);
state->map.virt = ioremap_nocache(memory->start, state->map.size);
state->map.virt = ioremap_nocache(memory->start, state->win_size);
if (!state->map.virt)
return -ENOMEM;