libata: PCI device should be powered up before being accessed

[firefly-linux-kernel-4.4.55.git] / drivers / ata / pata_sis.c

diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c
index 87546d9f1ca0839cf5067d94116af34ae297c7e7..abda90f5124753f880d339e6fb35c7d1b2a0d978 100644 (file)
--- a/drivers/ata/pata_sis.c
+++ b/drivers/ata/pata_sis.c
@@ -345,7 +345,7 @@ static void sis_old_set_dmamode (struct ata_port *ap, struct ata_device *adev)
 
        if (adev->dma_mode < XFER_UDMA_0) {
                /* bits 3-0 hold recovery timing bits 8-10 active timing and
-                  the higer bits are dependant on the device */
+                  the higher bits are dependant on the device */
                timing &= ~0x870F;
                timing |= mwdma_bits[speed];
        } else {
@@ -385,7 +385,7 @@ static void sis_66_set_dmamode (struct ata_port *ap, struct ata_device *adev)
 
        if (adev->dma_mode < XFER_UDMA_0) {
                /* bits 3-0 hold recovery timing bits 8-10 active timing and
-                  the higer bits are dependant on the device, bit 15 udma */
+                  the higher bits are dependant on the device, bit 15 udma */
                timing &= ~0x870F;
                timing |= mwdma_bits[speed];
        } else {
@@ -862,6 +862,7 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
        struct pci_dev *host = NULL;
        struct sis_chipset *chipset = NULL;
        struct sis_chipset *sets;
+       int rc;
 
        static struct sis_chipset sis_chipsets[] = {
 
@@ -914,8 +915,11 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
                dev_printk(KERN_DEBUG, &pdev->dev,
                           "version " DRV_VERSION "\n");
 
-       /* We have to find the bridge first */
+       rc = pcim_enable_device(pdev);
+       if (rc)
+               return rc;
 
+       /* We have to find the bridge first */
        for (sets = &sis_chipsets[0]; sets->device; sets++) {
                host = pci_get_device(PCI_VENDOR_ID_SI, sets->device, NULL);
                if (host != NULL) {