From: Jean Delvare <[email protected]>

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 <[email protected]>
Cc: [email protected]
Fixes: 57d155506dd5 ("eeprom: at24: extend driver to plug into the NVMEM 
framework")
Cc: Andrew Lunn <[email protected]>
Cc: Srinivas Kandagatla <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Bartosz Golaszewski <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Signed-off-by: Bartosz Golaszewski <[email protected]>
[Bartosz: backported to v4.19.y]
Signed-off-by: Bartosz Golaszewski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 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
@@ -724,7 +724,7 @@ static int at24_probe(struct i2c_client
        nvmem_config.name = dev_name(dev);
        nvmem_config.dev = dev;
        nvmem_config.read_only = !writable;
-       nvmem_config.root_only = true;
+       nvmem_config.root_only = !(pdata.flags & AT24_FLAG_IRUGO);
        nvmem_config.owner = THIS_MODULE;
        nvmem_config.compat = true;
        nvmem_config.base_dev = dev;


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