X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=drivers%2Fisdn%2Fhisax%2Fhfc_pci.c;h=81dd465afcf411d1bea0422f27daed2b1c2c5594;hb=7418e6520f22a2e35815122fa5a53d5bbfa2c10f;hp=5b719b561860c630508e337b9be367a5aa7e3547;hpb=f9fc54d313fab2834f44f516459cdc8ac91d797f;p=mirror_ubuntu-focal-kernel.git

diff --git a/drivers/isdn/hisax/hfc_pci.c b/drivers/isdn/hisax/hfc_pci.c
index 5b719b561860..81dd465afcf4 100644
--- a/drivers/isdn/hisax/hfc_pci.c
+++ b/drivers/isdn/hisax/hfc_pci.c
@@ -1169,11 +1169,13 @@ HFCPCI_l1hw(struct PStack *st, int pr, void *arg)
 		if (cs->debug & L1_DEB_LAPD)
 			debugl1(cs, "-> PH_REQUEST_PULL");
 #endif
+		spin_lock_irqsave(&cs->lock, flags);
 		if (!cs->tx_skb) {
 			test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
 			st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
 		} else
 			test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
+		spin_unlock_irqrestore(&cs->lock, flags);
 		break;
 	case (HW_RESET | REQUEST):
 		spin_lock_irqsave(&cs->lock, flags);