diff --git a/sys/dev/amr/amr.c b/sys/dev/amr/amr.c
index e55db75c2ed..b93135c9081 100644
--- a/sys/dev/amr/amr.c
+++ b/sys/dev/amr/amr.c
@@ -531,7 +531,8 @@ amr_linux_ioctl_int(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag,
     ac = NULL;
     ap = NULL;
 
-    copyin(addr, &ali, sizeof(ali));
+    if ((error = copyin(addr, &ali, sizeof(ali))) != 0)
+	return (error);
     switch (ali.ui.fcs.opcode) {
     case 0x82:
 	switch(ali.ui.fcs.subopcode) {