iio:dac:mcp4725 wrong return type of attribute _show function
iio:dac:mcp4725 wrong return type of attribute _show function

Should be ssize_t and is int.

Signed-off-by: Jonathan Cameron <09f65b71b7655725897b2fd41a09a0cefe2e1ace@kernel.org>
Reported-by: Fengguan Wu <24f7fe9d205c8a9f6ade0c2894e14303ca16087f@intel.com>
Acked-by: Peter Meerwald <a2c19d57d338d8f9d8de092166164455662a8cbe@pmeerw.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs