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mtd: maps: gpio-addr-flash: add error handling for ioremap_nocache 

When ioremap_nocache fails, the lack of error-handling code may
cause unexpected results.

This patch adds error-handling code after calling ioremap_nocache.

Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
This commit is contained in:
Zhouyang Jia 2018-06-22 09:52:20 +08:00 committed by Boris Brezillon
parent 7a1f1b594a
commit c31106b7af
1 changed files with 3 additions and 0 deletions
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3
drivers/mtd/maps/gpio-addr-flash.c
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@ -239,6 +239,9 @@ static int gpio_flash_probe(struct platform_device *pdev)
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);
if (!state->map.virt)
return -ENOMEM;
state->map.phys = NO_XIP;
state->map.map_priv_1 = (unsigned long)state;