Don't rely on successful write to sysfs control files, assert existence / non-existence of a respective device sysfs node as well. Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@xxxxxxxxxxxxxxx> Reviewed-by: Michał Winiarski <michal.winiarski@xxxxxxxxx> --- tests/core_hotunplug.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c index d5b8c5ed3..a7dc4cf3b 100644 --- a/tests/core_hotunplug.c +++ b/tests/core_hotunplug.c @@ -131,6 +131,9 @@ static void driver_unbind(struct hotunplug *priv, const char *prefix, priv->dev_bus_addr), "Driver unbind failure!\n"); igt_reset_timeout(); + + igt_assert_f(faccessat(priv->fd.sysfs_drv, priv->dev_bus_addr, F_OK, 0), + "Unbound device still present\n"); } /* Re-bind the driver to the device */ @@ -144,6 +147,10 @@ static void driver_bind(struct hotunplug *priv, int timeout) priv->dev_bus_addr), "Driver re-bind failure\n!"); igt_reset_timeout(); + + igt_fail_on_f(faccessat(priv->fd.sysfs_drv, priv->dev_bus_addr, + F_OK, 0), + "Rebound device not present!\n"); } /* Remove (virtually unplug) the device from its bus */ @@ -166,6 +173,9 @@ static void device_unplug(struct hotunplug *priv, const char *prefix, priv->fd.sysfs_dev = close_sysfs(priv->fd.sysfs_dev); igt_assert_eq(priv->fd.sysfs_dev, -1); + + igt_assert_f(faccessat(priv->fd.sysfs_bus, priv->dev_bus_addr, F_OK, 0), + "Unplugged device still present\n"); } /* Re-discover the device by rescanning its bus */ @@ -178,6 +188,10 @@ static void bus_rescan(struct hotunplug *priv, int timeout) igt_assert_f(igt_sysfs_set(priv->fd.sysfs_bus, "../rescan", "1"), "Bus rescan failure!\n"); igt_reset_timeout(); + + igt_fail_on_f(faccessat(priv->fd.sysfs_bus, priv->dev_bus_addr, + F_OK, 0), + "Fakely unplugged device not rediscovered!\n"); } static void cleanup(struct hotunplug *priv) -- 2.21.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
