From: Ricardo Ribalda Delgado Date: Thu, 4 Oct 2018 13:01:04 +0000 (+0200) Subject: mtd: maps: gpio-addr-flash: Fix ioremapped size X-Git-Tag: v4.20-rc1~187^2~7 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=6c925b333368cda4e1b0513b07f72316c0e7edd7;p=linux.git 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 Fixes: ebd71e3a4861 ("mtd: maps: gpio-addr-flash: fix warnings and make more portable") Cc: Signed-off-by: Boris Brezillon --- diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c index 17be47f72973..6de16e81994c 100644 --- a/drivers/mtd/maps/gpio-addr-flash.c +++ b/drivers/mtd/maps/gpio-addr-flash.c @@ -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;