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| author | Yazen Ghannam <Yazen.Ghannam@amd.com> | 2017-01-27 18:24:21 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2017-01-28 14:36:47 +0100 |
| commit | d7fc9d77acb8651e5fcb77df71dfd11fcf1f08ba (patch) | |
| tree | 8b425f989437a0ff7e535dfb46b889441fbb1cba /drivers/edac/edac_mc.c | |
| parent | EDAC, amd64: Remove unused printing macros (diff) | |
| download | linux-d7fc9d77acb8651e5fcb77df71dfd11fcf1f08ba.tar.xz linux-d7fc9d77acb8651e5fcb77df71dfd11fcf1f08ba.zip | |
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 <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1485537863-2707-7-git-send-email-Yazen.Ghannam@amd.com
[ Prettify text. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'drivers/edac/edac_mc.c')
| -rw-r--r-- | drivers/edac/edac_mc.c | 14 |
1 files changed, 14 insertions, 0 deletions
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) { |