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authorKangjie Lu <kjlu@umn.edu>2019-04-11 11:17:31 +0200
committerDavid S. Miller <davem@davemloft.net>2019-04-11 11:04:08 -0700
commite183d4e414b64711baf7a04e214b61969ca08dfa (patch)
tree05cb57ab0507aac5640939c941a924eee866ab31 /net
parentfd57770dd198f5b2ddd5b9e6bf282cf98d63adb9 (diff)
downloadlinux-e183d4e414b64711baf7a04e214b61969ca08dfa.tar.bz2
net/smc: fix a NULL pointer dereference
In case alloc_ordered_workqueue fails, the fix returns NULL to avoid NULL pointer dereference. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/smc/smc_ism.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/smc/smc_ism.c b/net/smc/smc_ism.c
index 2fff79db1a59..e89e918b88e0 100644
--- a/net/smc/smc_ism.c
+++ b/net/smc/smc_ism.c
@@ -289,6 +289,11 @@ struct smcd_dev *smcd_alloc_dev(struct device *parent, const char *name,
INIT_LIST_HEAD(&smcd->vlan);
smcd->event_wq = alloc_ordered_workqueue("ism_evt_wq-%s)",
WQ_MEM_RECLAIM, name);
+ if (!smcd->event_wq) {
+ kfree(smcd->conn);
+ kfree(smcd);
+ return NULL;
+ }
return smcd;
}
EXPORT_SYMBOL_GPL(smcd_alloc_dev);