2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/atm/ambassador.h b/drivers/atm/ambassador.h
index 8296420ceaef..ff2a303cbe00 100644
--- a/drivers/atm/ambassador.h
+++ b/drivers/atm/ambassador.h
@@ -626,7 +626,7 @@ typedef struct {
 
 struct amb_dev {
   u8               irq;
-  long             flags;
+  unsigned long    flags;
   u32              iobase;
   u32 *            membase;
 
diff --git a/drivers/atm/horizon.h b/drivers/atm/horizon.h
index 4461229f56a5..b48859d0d434 100644
--- a/drivers/atm/horizon.h
+++ b/drivers/atm/horizon.h
@@ -423,7 +423,7 @@ struct hrz_dev {
   wait_queue_head_t   tx_queue;
 
   u8                  irq;
-  long                flags;
+  unsigned long       flags;
   u8                  tx_last;
   u8                  tx_idle;