FROMGIT: eeprom: at24: fix memory corruption race condition

If the eeprom is not accessible, an nvmem device will be registered, the
read will fail, and the device will be torn down. If another driver
accesses the nvmem device after the teardown, it will reference
invalid memory.

Move the failure point before registering the nvmem device.

Signed-off-by: Daniel Okazaki <dtokazaki@google.com>
Fixes: b20eb4c1 ("eeprom: at24: drop unnecessary label")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240422174337.2487142-1-dtokazaki@google.com


Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Bug: 334954384
(cherry picked from commit f42c9702
https://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git/

 at24/for-current)
Change-Id: I3d1205a1db45fd56a6b4b7b2387ba728f18faa6e
Signed-off-by: Daniel Okazaki <dtokazaki@google.com>