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-rw-r--r--hw/ide/ahci.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
index bfe633f3a5..50327ffdf1 100644
--- a/hw/ide/ahci.c
+++ b/hw/ide/ahci.c
@@ -438,9 +438,9 @@ static void check_cmd(AHCIState *s, int port)
 
     if ((pr->cmd & PORT_CMD_START) && pr->cmd_issue) {
         for (slot = 0; (slot < 32) && pr->cmd_issue; slot++) {
-            if ((pr->cmd_issue & (1 << slot)) &&
+            if ((pr->cmd_issue & (1U << slot)) &&
                 !handle_cmd(s, port, slot)) {
-                pr->cmd_issue &= ~(1 << slot);
+                pr->cmd_issue &= ~(1U << slot);
             }
         }
     }