When the interface is down, the hardware is powered off.
However, the suspend handler currently tries to send host sleep commands
(when wakeup params are set) in this configuration, causing a system hang
when going into suspend (the commands will never complete).
Avoid this by detecting this situation and simply returning from
the suspend handler without doing anything special.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
mmc_pm_flag_t flags = sdio_get_host_pm_caps(func);
+ /* If we're powered off anyway, just let the mmc layer remove the
+ * card. */
+ if (!lbs_iface_active(card->priv))
+ return -ENOSYS;
+
dev_info(dev, "%s: suspend: PM flags = 0x%x\n",
sdio_func_id(func), flags);