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nvmem: Use the same permissions for eeprom as for nvmem

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commit e70d8b287301eb6d7c7761c6171c56af62110ea3 upstream.

The compatibility "eeprom" attribute is currently root-only no
matter what the configuration says. The "nvmem" attribute does
respect the setting of the root_only configuration bit, so do the
same for "eeprom".

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: b6c217ab9be6 ("nvmem: Add backwards compatibility support for older EEPROM drivers.")
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20190728184255.563332e6@endymion
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jean Delvare 2019-07-28 18:42:55 +02:00 committed by Greg Kroah-Hartman
parent a75883f402
commit b0fc60701d
1 changed files with 11 additions and 4 deletions
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15
drivers/nvmem/core.c
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@ -407,10 +407,17 @@ static int nvmem_setup_compat(struct nvmem_device *nvmem,
if (!config->base_dev)
return -EINVAL;
if (nvmem->read_only)
nvmem->eeprom = bin_attr_ro_root_nvmem;
else
nvmem->eeprom = bin_attr_rw_root_nvmem;
if (nvmem->read_only) {
if (config->root_only)
nvmem->eeprom = bin_attr_ro_root_nvmem;
else
nvmem->eeprom = bin_attr_ro_nvmem;
} else {
if (config->root_only)
nvmem->eeprom = bin_attr_rw_root_nvmem;
else
nvmem->eeprom = bin_attr_rw_nvmem;
}
nvmem->eeprom.attr.name = "eeprom";
nvmem->eeprom.size = nvmem->size;
#ifdef CONFIG_DEBUG_LOCK_ALLOC