broadband-modem-qmi: Cellbroadcast channel reading fixes
- Return after setting the error
- Allow for 65535 as valid channel
Fixes: e25dd7db ("broadband-modem-qmi: Add support for loading channels")
(The code was added past the 1.24 release)
Signed-off-by: Guido Günther agx@sigxcpu.org
Edited by Guido Günther