From 244b2c5ca8b14627e4a17755e5922221e121c771 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 09 Oct 2024 06:15:07 +0000
Subject: [PATCH] change system file
---
kernel/drivers/s390/block/dasd_alias.c | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/kernel/drivers/s390/block/dasd_alias.c b/kernel/drivers/s390/block/dasd_alias.c
index dc78a52..b6b938a 100644
--- a/kernel/drivers/s390/block/dasd_alias.c
+++ b/kernel/drivers/s390/block/dasd_alias.c
@@ -675,12 +675,12 @@
struct dasd_device *dasd_alias_get_start_dev(struct dasd_device *base_device)
{
struct dasd_eckd_private *alias_priv, *private = base_device->private;
- struct alias_pav_group *group = private->pavgroup;
struct alias_lcu *lcu = private->lcu;
struct dasd_device *alias_device;
+ struct alias_pav_group *group;
unsigned long flags;
- if (!group || !lcu)
+ if (!lcu)
return NULL;
if (lcu->pav == NO_PAV ||
lcu->flags & (NEED_UAC_UPDATE | UPDATE_PENDING))
@@ -697,6 +697,11 @@
}
spin_lock_irqsave(&lcu->lock, flags);
+ group = private->pavgroup;
+ if (!group) {
+ spin_unlock_irqrestore(&lcu->lock, flags);
+ return NULL;
+ }
alias_device = group->next;
if (!alias_device) {
if (list_empty(&group->aliaslist)) {
--
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