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mtd: maps: physmap: Check mtd_device_{parse_register, unregister}() ret code

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mtd_device_parse_register() and mtd_device_unregister() can fail,
check their return code and propagate the error to the upper layer
if needed.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Boris Brezillon 2018-10-19 09:49:00 +02:00
parent 51b436a242
commit 1e4f420849
1 changed files with 11 additions and 4 deletions
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15
drivers/mtd/maps/physmap.c
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@ -35,7 +35,7 @@ static int physmap_flash_remove(struct platform_device *dev)
{
struct physmap_flash_info *info;
struct physmap_flash_data *physmap_data;
int i;
int i, err;
info = platform_get_drvdata(dev);
if (info == NULL)
@ -44,7 +44,10 @@ static int physmap_flash_remove(struct platform_device *dev)
physmap_data = dev_get_platdata(&dev->dev);
if (info->cmtd) {
mtd_device_unregister(info->cmtd);
err = mtd_device_unregister(info->cmtd);
if (err)
return err;
if (info->cmtd != info->mtds[0])
mtd_concat_destroy(info->cmtd);
}
@ -194,8 +197,12 @@ static int physmap_flash_probe(struct platform_device *dev)
part_types = physmap_data->part_probe_types ? : part_probe_types;
mtd_device_parse_register(info->cmtd, part_types, NULL,
physmap_data->parts, physmap_data->nr_parts);
err = mtd_device_parse_register(info->cmtd, part_types, NULL,
physmap_data->parts,
physmap_data->nr_parts);
if (err)
goto err_out;
return 0;
err_out: