tree 46b7522c6682e52c2869e2992502ad6b41f656fd
parent b5bb6d3068eabb075ee7db09c73374f6db73ff4a
author Brian Norris <computersforpeace@gmail.com> 1449701425 -0800
committer Shuah Khan <shuahkh@osg.samsung.com> 1452199282 -0700

test: firmware_class: report errors properly on failure

request_firmware() failures currently won't get reported at all (the
error code is discarded). What's more, we get confusing messages, like:

    # echo -n notafile > /sys/devices/virtual/misc/test_firmware/trigger_request
    [ 8280.311856] test_firmware: loading 'notafile'
    [ 8280.317042] test_firmware: load of 'notafile' failed: -2
    [ 8280.322445] test_firmware: loaded: 0
    # echo $?
    0

Report the failures via write() errors, and don't say we "loaded"
anything.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>