[PATCH] ahci: do not fail softreset if PHY reports no device

[linux-beck.git] / drivers / scsi / ahci.c

diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index 1bd82c4e52a0da80d1939a3b92ccce98fb222bf1..ff48066d4c4f93c656b5472288691b3ff2ed0793 100644 (file)
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -48,7 +48,7 @@
 #include <asm/io.h>
 
 #define DRV_NAME       "ahci"
-#define DRV_VERSION    "1.2"
+#define DRV_VERSION    "1.3"
 
 
 enum {
@@ -549,6 +549,12 @@ static int ahci_softreset(struct ata_port *ap, int verbose, unsigned int *class)
 
        DPRINTK("ENTER\n");
 
+       if (!sata_dev_present(ap)) {
+               DPRINTK("PHY reports no device\n");
+               *class = ATA_DEV_NONE;
+               return 0;
+       }
+
        /* prepare for SRST (AHCI-1.1 10.4.1) */
        rc = ahci_stop_engine(ap);
        if (rc) {