UPSTREAM: eeprom: at24: fix memory corruption race condition

[ Upstream commit f42c9702 ]

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.

Bug: 359558663

Change-Id: If6368cf79172ca2d3e953e63e68ee4e7b3830512
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit c850f71f)