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commita6a0f04e7dupstream. Read/write callbacks registered with nvmem core expect 0 to be returned on success and a negative value to be returned on failure. Currently pci1xxxx_otp_read()/pci1xxxx_otp_write() and pci1xxxx_eeprom_read()/pci1xxxx_eeprom_write() return the number of bytes read/written on success. Fix to return 0 on success. Fixes:9ab5465349("misc: microchip: pci1xxxx: Add support to read and write into PCI1XXXX EEPROM via NVMEM sysfs") Fixes:0969001569("misc: microchip: pci1xxxx: Add support to read and write into PCI1XXXX OTP via NVMEM sysfs") Cc: stable@vger.kernel.org Signed-off-by: Joy Chakraborty <joychakr@google.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20240612070031.1215558-1-joychakr@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>