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path: root/drivers/edac/edac_device.c
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Diffstat (limited to 'drivers/edac/edac_device.c')
-rw-r--r--drivers/edac/edac_device.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
index a7d2c717d033..b02a6a69a8f0 100644
--- a/drivers/edac/edac_device.c
+++ b/drivers/edac/edac_device.c
@@ -490,6 +490,20 @@ void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev,
mutex_unlock(&device_ctls_mutex);
}
+/*
+ * edac_device_alloc_index: Allocate a unique device index number
+ *
+ * Return:
+ * allocated index number
+ */
+int edac_device_alloc_index(void)
+{
+ static atomic_t device_indexes = ATOMIC_INIT(0);
+
+ return atomic_inc_return(&device_indexes) - 1;
+}
+EXPORT_SYMBOL_GPL(edac_device_alloc_index);
+
/**
* edac_device_add_device: Insert the 'edac_dev' structure into the
* edac_device global list and create sysfs entries associated with