greybus: loopback_test: Cancel only the tests running on selected devices

When starting a loopback test, it cancels all currently running tests on
all loopback devices. When -m argument is given, which runs the test on
specific loopback devices, only the tests running on the selected
devices need to be cancelled before starting new tests.

Signed-off-by: Ryan Lim <limryan@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

diff --git a/drivers/staging/greybus/tools/loopback_test.c b/drivers/staging/greybus/tools/loopback_test.c
index 25035f6..ec44892 100644 (file)
--- a/drivers/staging/greybus/tools/loopback_test.c
+++ b/drivers/staging/greybus/tools/loopback_test.c
@@ -780,7 +780,8 @@ static void prepare_devices(struct loopback_test *t)
 
        /* Cancel any running tests */
        for (i = 0; i < t->device_count; i++)
-               write_sysfs_val(t->devices[i].sysfs_entry, "type", 0);
+               if (device_enabled(t, i))
+                       write_sysfs_val(t->devices[i].sysfs_entry, "type", 0);
 
 
        for (i = 0; i < t->device_count; i++) {