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

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commit 6c925b3333 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ricardo Ribalda Delgado
2018-10-04 15:01:04 +02:00
committed by Greg Kroah-Hartman
parent 6737137331
commit 53772af08a
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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@@ -238,7 +238,7 @@ 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;