From d7fc9d77acb8651e5fcb77df71dfd11fcf1f08ba Mon Sep 17 00:00:00 2001 From: Yazen Ghannam Date: Fri, 27 Jan 2017 11:24:21 -0600 Subject: EDAC: Add routine to check if MC devices list is empty We need to know if any MC devices have been allocated. Signed-off-by: Yazen Ghannam Cc: linux-edac Link: http://lkml.kernel.org/r/1485537863-2707-7-git-send-email-Yazen.Ghannam@amd.com [ Prettify text. ] Signed-off-by: Borislav Petkov --- drivers/edac/edac_mc.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers/edac/edac_mc.c') diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index 750891ea07de..e5573c56b15e 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -453,6 +453,20 @@ void edac_mc_free(struct mem_ctl_info *mci) } EXPORT_SYMBOL_GPL(edac_mc_free); +bool edac_has_mcs(void) +{ + bool ret; + + mutex_lock(&mem_ctls_mutex); + + ret = list_empty(&mc_devices); + + mutex_unlock(&mem_ctls_mutex); + + return !ret; +} +EXPORT_SYMBOL_GPL(edac_has_mcs); + /* Caller must hold mem_ctls_mutex */ static struct mem_ctl_info *__find_mci_by_dev(struct device *dev) { -- cgit v1.2.3