diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index 35a4b3073ec3fa992a406162b9bf3dac038bff97..a765fe7a55c39b57270a23486cd4a509cb7ca848 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -3842,7 +3842,7 @@ int __init option_setup(char *str)
 
     TRACE2(("option_setup() str %s\n", str ? str:"NULL")); 
 
-    while (cur && isdigit(*cur) && i <= MAXHA) {
+    while (cur && isdigit(*cur) && i < MAXHA) {
         ints[i++] = simple_strtoul(cur, NULL, 0);
         if ((cur = strchr(cur, ',')) != NULL) cur++;
     }