greybus: connection: convert connected dev_warn() to dev_err()

Failures from control-connected operations are fatal errors and
must be reported with dev_err() instead of dev_warn().

Fix it.

Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[ johan: do not promote disconnected warnings, update summary ]
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
1 file changed
tree: 7103b4c60c2b252720f0abd283de0a332440bbf5
  1. drivers/