From: Jean Delvare jdelvare@suse.de
commit 25e5ef302c24a6fead369c0cfe88c073d7b97ca8 upstream.
The integration of the at24 driver into the nvmem framework broke the world-readability of spd EEPROMs. Fix it.
Signed-off-by: Jean Delvare jdelvare@suse.de Cc: stable@vger.kernel.org Fixes: 57d155506dd5 ("eeprom: at24: extend driver to plug into the NVMEM framework") Cc: Andrew Lunn andrew@lunn.ch Cc: Srinivas Kandagatla srinivas.kandagatla@linaro.org Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: Bartosz Golaszewski brgl@bgdev.pl Cc: Arnd Bergmann arnd@arndb.de Signed-off-by: Bartosz Golaszewski bgolaszewski@baylibre.com [Bartosz: backported the patch to older branches] Signed-off-by: Bartosz Golaszewski bgolaszewski@baylibre.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/misc/eeprom/at24.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/misc/eeprom/at24.c +++ b/drivers/misc/eeprom/at24.c @@ -834,7 +834,7 @@ static int at24_probe(struct i2c_client at24->nvmem_config.name = dev_name(&client->dev); at24->nvmem_config.dev = &client->dev; at24->nvmem_config.read_only = !writable; - at24->nvmem_config.root_only = true; + at24->nvmem_config.root_only = !(chip.flags & AT24_FLAG_IRUGO); at24->nvmem_config.owner = THIS_MODULE; at24->nvmem_config.compat = true; at24->nvmem_config.base_dev = &client->dev;