1 files changed, 5 insertions, 5 deletions

diff --git a/wct4xxp.c b/wct4xxp.c
index a6d7d1b..d3bbad6 100755
--- a/wct4xxp.c
+++ b/wct4xxp.c
@@ -127,6 +127,7 @@ struct t4 {
 	int spantype[4];		/* card type, T1 or E1 */
 	unsigned int passno;	/* number of interrupt passes */
 	char *variety;
+	int last0;		/* for detecting double-missed IRQ */
 };
 
 static void set_clear(struct t4 *wc, int span);
@@ -878,21 +879,20 @@ found:
 static void t4_receiveprep(struct t4 *wc, int irq)
 {
 	volatile unsigned int *readchunk;
-	static int last0 = 1;
 	int dbl = 0;
 	int x,y,z;
 	unsigned int tmp;
 	if (irq & 1) {
 		/* First part */
 		readchunk = wc->readchunk + 1;
-		if (!last0) 
+		if (!wc->last0) 
 			dbl = 1;
-		last0 = 0;
+		wc->last0 = 0;
 	} else {
 		readchunk = wc->readchunk + ZT_CHUNKSIZE * 32 + 1;
-		if (last0) 
+		if (wc->last0) 
 			dbl = 1;
-		last0 = 1;
+		wc->last0 = 1;
 	}
 	if (dbl) 
 		printk("TE410P: Double/missed interrupt detected\n");