greybus: connection: prevent oops for protocol_id sysfs file

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If we don't have a protocol assigned to a connection, don't oops when
trying to read the "protocol_id" sysfs file.

Fixes Jira SW-968.

Reported-by: Alexandre Bailon <abailon@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>

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Greg Kroah-Hartman 2015-07-22 18:21:04 -07:00

parent 155b9f175e

commit 2975617421

1 changed files with 4 additions and 1 deletions

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drivers/staging/greybus/connection.c

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