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| author | Zhouyang Jia <jiazhouyang09@gmail.com> | 2018-06-22 09:52:20 +0800 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@bootlin.com> | 2018-07-07 10:48:36 +0200 |
| commit | c31106b7af32d845e56acb705f07e187f9b519e6 (patch) | |
| tree | aa21939252693ea7a096bd0c689461e52f2d5579 /drivers/mtd/maps | |
| parent | 7a1f1b594a3d102f3766b9866aa081f5480c0be0 (diff) | |
| download | linux-c31106b7af32d845e56acb705f07e187f9b519e6.tar.gz linux-c31106b7af32d845e56acb705f07e187f9b519e6.tar.bz2 linux-c31106b7af32d845e56acb705f07e187f9b519e6.zip | |
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>
Diffstat (limited to 'drivers/mtd/maps')
| -rw-r--r-- | drivers/mtd/maps/gpio-addr-flash.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c index 385305e66fd1..9d9723693217 100644 --- a/drivers/mtd/maps/gpio-addr-flash.c +++ b/drivers/mtd/maps/gpio-addr-flash.c @@ -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; |