ACPI: SBS: Host controller must initialize before SBS.
In static case sbshc must be compiled ahead of sbs, so that
hc is configured first.
http://bugzilla.kernel.org/show_bug.cgi?id=9910
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index f29812a..40b0fca 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -60,5 +60,5 @@
obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o
obj-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o
-obj-$(CONFIG_ACPI_SBS) += sbs.o
obj-$(CONFIG_ACPI_SBS) += sbshc.o
+obj-$(CONFIG_ACPI_SBS) += sbs.o
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 1194105..585ae3c 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -827,7 +827,7 @@
#endif
printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
- battery->name, sbs->battery->present ? "present" : "absent");
+ battery->name, battery->present ? "present" : "absent");
return result;
}
diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
index ae9a904..a2cf300 100644
--- a/drivers/acpi/sbshc.c
+++ b/drivers/acpi/sbshc.c
@@ -117,6 +117,11 @@
int ret = -EFAULT, i;
u8 temp, sz = 0;
+ if (!hc) {
+ printk(KERN_ERR PREFIX "host controller is not configured\n");
+ return ret;
+ }
+
mutex_lock(&hc->lock);
if (smb_hc_read(hc, ACPI_SMB_PROTOCOL, &temp))
goto end;
@@ -292,6 +297,7 @@
hc = acpi_driver_data(device);
acpi_ec_remove_query_handler(hc->ec, hc->query_bit);
kfree(hc);
+ acpi_driver_data(device) = NULL;
return 0;
}