1 files changed, 3 insertions, 0 deletions
diff --git a/zaptel.c b/zaptel.c
index bd2ac96..6a5c2e7 100755
--- a/zaptel.c
+++ b/zaptel.c
@@ -2910,7 +2910,9 @@ static int zt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cmd
 			/* if same, ignore it */
 			if (i == maint.command) break;
 			rv = spans[maint.spanno]->maint(spans[maint.spanno], maint.command);
+			spin_unlock_irqrestore(&spans[maint.spanno]->lock, flags);
 			if (rv) return rv;
+			spin_lock_irqsave(&spans[maint.spanno]->lock, flags);
 			break;
 		case ZT_MAINT_LOOPUP:
 		case ZT_MAINT_LOOPDOWN:
@@ -3815,6 +3817,7 @@ int zt_register(struct zt_span *span, int prefmaster)
 	}
 	span->flags |= ZT_FLAG_REGISTERED;
 	span->spanno = x;
+	spin_lock_init(&span->lock);
 	if (!span->deflaw) {
 		printk("zaptel: Span %s didn't specify default law.  Assuming mulaw, please fix driver!\n", span->name);
 		span->deflaw = ZT_LAW_MULAW;