tree aedbb8adc98c91a22b88fbeff79220b25e69a677
parent 3e6d5f3a6103b20c70f4d75b90d2c798045cc7ef
author Greg Kroah-Hartman <greg@kroah.com> 1414147575 +0800
committer Greg Kroah-Hartman <greg@kroah.com> 1414148421 +0800

greybus: module: don't create duplicate module ids

If we somehow get a hotplug event for a module id that we already have
created[1], don't try to create it again, or sysfs will complain loudly.
Instead, abort the creation properly.

[1] If, for example, you happened to run a script on a greybus emulator
twice in a row...

Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
Reviewed-by: Alex Elder <elder@linaro.org>