From 53772af08acd3e5143a5c1e6f7b8ddd3cabb350f Mon Sep 17 00:00:00 2001 From: Ricardo Ribalda Delgado Date: Thu, 4 Oct 2018 15:01:04 +0200 Subject: [PATCH] mtd: maps: gpio-addr-flash: Fix ioremapped size commit 6c925b333368cda4e1b0513b07f72316c0e7edd7 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 Fixes: ebd71e3a4861 ("mtd: maps: gpio-addr-flash: fix warnings and make more portable") Cc: Signed-off-by: Boris Brezillon Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/maps/gpio-addr-flash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c index 9d97236..2e3a8da 100644 --- a/drivers/mtd/maps/gpio-addr-flash.c +++ b/drivers/mtd/maps/gpio-addr-flash.c @@ -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; -- 2.7.4