diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 1d60ef0..6978469 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -684,7 +684,7 @@
 		cap &= ~HOST_CAP_NCQ;
 	}
 
-	if ((cap && HOST_CAP_PMP) && (hpriv->flags & AHCI_HFLAG_NO_PMP)) {
+	if ((cap & HOST_CAP_PMP) && (hpriv->flags & AHCI_HFLAG_NO_PMP)) {
 		dev_printk(KERN_INFO, &pdev->dev,
 			   "controller can't do PMP, turning off CAP_PMP\n");
 		cap &= ~HOST_CAP_PMP;