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authorInaky Perez-Gonzalez <inaky@linux.intel.com>2009-01-08 11:08:25 -0800
committerDavid S. Miller <davem@davemloft.net>2009-01-08 11:08:25 -0800
commit9fd7a1d92b4462acaa460bb0f58b12ede6ffe6b9 (patch)
tree16b4dd7ddca6cca4cdcb4a5d76643284c627ccaf /drivers
parenta2e9da4b09c99857080afd2e8143f70bc03ebe9b (diff)
i2400m/usb: wrap USB power saving in #ifdef CONFIG_PM
Current code was assuming PM was always enabled, which is not correct. Code which accesses members in the struct usb_device that are dependant on CONFIG_PM must be protected the same. Reported by Randy Dunlap from a build error in the linux-next tree on 07/01/2009. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wimax/i2400m/usb.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wimax/i2400m/usb.c b/drivers/net/wimax/i2400m/usb.c
index 6d4b65fd9c1..c6d93465c7e 100644
--- a/drivers/net/wimax/i2400m/usb.c
+++ b/drivers/net/wimax/i2400m/usb.c
@@ -397,11 +397,13 @@ int i2400mu_probe(struct usb_interface *iface,
i2400m->bus_fw_name = I2400MU_FW_FILE_NAME;
i2400m->bus_bm_mac_addr_impaired = 0;
+#ifdef CONFIG_PM
iface->needs_remote_wakeup = 1; /* autosuspend (15s delay) */
device_init_wakeup(dev, 1);
usb_autopm_enable(i2400mu->usb_iface);
usb_dev->autosuspend_delay = 15 * HZ;
usb_dev->autosuspend_disabled = 0;
+#endif
result = i2400m_setup(i2400m, I2400M_BRI_MAC_REINIT);
if (result < 0) {
@@ -493,7 +495,9 @@ int i2400mu_suspend(struct usb_interface *iface, pm_message_t pm_msg)
int result = 0;
struct device *dev = &iface->dev;
struct i2400mu *i2400mu = usb_get_intfdata(iface);
+#ifdef CONFIG_PM
struct usb_device *usb_dev = i2400mu->usb_dev;
+#endif
struct i2400m *i2400m = &i2400mu->i2400m;
d_fnstart(3, dev, "(iface %p pm_msg %u)\n", iface, pm_msg.event);
@@ -503,11 +507,13 @@ int i2400mu_suspend(struct usb_interface *iface, pm_message_t pm_msg)
atomic_dec(&i2400mu->do_autopm);
result = i2400m_cmd_enter_powersave(i2400m);
atomic_inc(&i2400mu->do_autopm);
+#ifdef CONFIG_PM
if (result < 0 && usb_dev->auto_pm == 0) {
/* System suspend, can't fail */
dev_err(dev, "failed to suspend, will reset on resume\n");
result = 0;
}
+#endif
if (result < 0)
goto error_enter_powersave;
i2400mu_notification_release(i2400mu);