diff options
Diffstat (limited to 'drivers/edac/ghes_edac.c')
| -rw-r--r-- | drivers/edac/ghes_edac.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c index da60c29468a7..94d1e3165052 100644 --- a/drivers/edac/ghes_edac.c +++ b/drivers/edac/ghes_edac.c @@ -55,6 +55,8 @@ static DEFINE_SPINLOCK(ghes_lock); static bool __read_mostly force_load; module_param(force_load, bool, 0); +static bool system_scanned; + /* Memory Device - Type 17 of SMBIOS spec */ struct memdev_dmi_entry { u8 type; @@ -225,14 +227,12 @@ static void enumerate_dimms(const struct dmi_header *dh, void *arg) static void ghes_scan_system(void) { - static bool scanned; - - if (scanned) + if (system_scanned) return; dmi_walk(enumerate_dimms, &ghes_hw); - scanned = true; + system_scanned = true; } void ghes_edac_report_mem_error(int sev, struct cper_sec_mem_err *mem_err) @@ -508,6 +508,7 @@ int ghes_edac_register(struct ghes *ghes, struct device *dev) if (!force_load && idx < 0) return -ENODEV; } else { + force_load = true; idx = 0; } @@ -629,8 +630,14 @@ void ghes_edac_unregister(struct ghes *ghes) struct mem_ctl_info *mci; unsigned long flags; + if (!force_load) + return; + mutex_lock(&ghes_reg_mutex); + system_scanned = false; + memset(&ghes_hw, 0, sizeof(struct ghes_hw_desc)); + if (!refcount_dec_and_test(&ghes_refcount)) goto unlock; |