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-rw-r--r--drivers/acpi/nfit/core.c3
-rw-r--r--drivers/acpi/nfit/nfit.h4
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 80cc7c089a15..4a363bed89b3 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -2681,6 +2681,9 @@ static void acpi_nfit_notify(struct acpi_device *adev, u32 event)
dev_dbg(dev, "%s: event: %d\n", __func__, event);
+ if (event != NFIT_NOTIFY_UPDATE)
+ return;
+
device_lock(dev);
if (!dev->driver) {
/* dev->driver may be null if we're being removed */
diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h
index e894ded24d99..51d23f130d86 100644
--- a/drivers/acpi/nfit/nfit.h
+++ b/drivers/acpi/nfit/nfit.h
@@ -78,6 +78,10 @@ enum {
NFIT_ARS_TIMEOUT = 90,
};
+enum nfit_root_notifiers {
+ NFIT_NOTIFY_UPDATE = 0x80,
+};
+
struct nfit_spa {
struct list_head list;
struct nd_region *nd_region;