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]>
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]>
---
Note: This is only the 1st half of the fix, the nvmem core driver
also needs to be fixed.

Changes since V1:
 * Split into 2 patches, one to the at24 driver and one to the nvmem
   core.

 drivers/misc/eeprom/at24.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-5.1.orig/drivers/misc/eeprom/at24.c   2019-07-28 16:52:06.550918923 
+0200
+++ linux-5.1/drivers/misc/eeprom/at24.c        2019-07-28 16:53:28.104167083 
+0200
@@ -719,7 +719,7 @@ 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 = !(flags & AT24_FLAG_IRUGO);
        nvmem_config.owner = THIS_MODULE;
        nvmem_config.compat = true;
        nvmem_config.base_dev = dev;


-- 
Jean Delvare
SUSE L3 Support

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