From 1e4f42084910067b2d37002afb6d1d1413552e1c Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Fri, 19 Oct 2018 09:49:00 +0200 Subject: [PATCH] mtd: maps: physmap: Check mtd_device_{parse_register, unregister}() ret code 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 Reviewed-by: Ricardo Ribalda Delgado Acked-by: Linus Walleij --- drivers/mtd/maps/physmap.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c index 86679d149a49..9b34223c4635 100644 --- a/drivers/mtd/maps/physmap.c +++ b/drivers/mtd/maps/physmap.c @@ -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: -- 2.25.1