Synchronize access to eeh_pe.
Signed-off-by: Sam Bobroff <sbobr...@linux.ibm.com>
---
arch/powerpc/kernel/eeh.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 7eb6ca1ab72b..eb37cb384ff4 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -394,7 +394,7 @@ static int eeh_phb_check_failure(struct eeh_pe *pe)
return -EPERM;
/* Find the PHB PE */
- phb_pe = eeh_phb_pe_get(pe->phb);
+ phb_pe = eeh_phb_pe_get(pe->phb); /* Acquire ref */
if (!phb_pe) {
pr_warn("%s Can't find PE for PHB#%x\n",
__func__, pe->phb->global_number);
@@ -422,9 +422,10 @@ static int eeh_phb_check_failure(struct eeh_pe *pe)
pr_debug("EEH: PHB#%x failure detected, location: %s\n",
phb_pe->phb->global_number, eeh_pe_loc_get(phb_pe));
- eeh_send_failure_event(phb_pe);
+ eeh_send_failure_event(phb_pe); /* Give ref */
return 1;
out:
+ eeh_put_pe(phb_pe); /* Release ref */
eeh_serialize_unlock(flags);
return ret;
}
--
2.22.0.216.g00a2a96fc9
