[libata pdc_adma] minor fixes and cleanups

Changes mostly from Mark Lord.

- fix bugs in probe-time error handling
- only complete qc if not NULL
- check port-level polling flags

1 files changed, 13 insertions, 13 deletions

diff --git a/drivers/scsi/pdc_adma.c b/drivers/scsi/pdc_adma.c
index 9820f272f889..7999817915c3 100644
--- a/drivers/scsi/pdc_adma.c
+++ b/drivers/scsi/pdc_adma.c
@@ -46,7 +46,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME        "pdc_adma"
-#define DRV_VERSION     "0.01"
+#define DRV_VERSION     "0.03"
 
 /* macro to calculate base address for ATA regs */
 #define ADMA_ATA_REGS(base,port_no)     ((base) + ((port_no) * 0x40))
@@ -79,7 +79,6 @@ enum {
         aNIEN                   = (1 << 8), /* irq mask: 1==masked */
         aGO                     = (1 << 7), /* packet trigger ("Go!") */
         aRSTADM                 = (1 << 5), /* ADMA logic reset */
-        aRSTA                   = (1 << 2), /* ATA hard reset */
         aPIOMD4                 = 0x0003,   /* PIO mode 4 */
 
         /* ADMA_STATUS register bits */
@@ -452,24 +451,25 @@ static inline unsigned int adma_intr_pkt(struct ata_host_set *host_set)
                 struct adma_port_priv *pp;
                 struct ata_queued_cmd *qc;
                 void __iomem *chan = ADMA_REGS(mmio_base, port_no);
-                u8 drv_stat, status = readb(chan + ADMA_STATUS);
+                u8 drv_stat = 0, status = readb(chan + ADMA_STATUS);
 
                 if (status == 0)
                         continue;
                 handled = 1;
                 adma_enter_reg_mode(ap);
-                if ((ap->flags & ATA_FLAG_PORT_DISABLED))
+                if (ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR))
                         continue;
                 pp = ap->private_data;
                 if (!pp || pp->state != adma_state_pkt)
                         continue;
                 qc = ata_qc_from_tag(ap, ap->active_tag);
-                drv_stat = 0;
-                if ((status & (aPERR | aPSD | aUIRQ)))
-                        drv_stat = ATA_ERR;
-                else if (pp->pkt[0] != cDONE)
-                        drv_stat = ATA_ERR;
-                ata_qc_complete(qc, drv_stat);
+                if (qc && (!(qc->tf.ctl & ATA_NIEN))) {
+                        if ((status & (aPERR | aPSD | aUIRQ)))
+                                drv_stat = ATA_ERR;
+                        else if (pp->pkt[0] != cDONE)
+                                drv_stat = ATA_ERR;
+                        ata_qc_complete(qc, drv_stat);
+                }
         }
         return handled;
 }
@@ -561,15 +561,15 @@ static int adma_port_start(struct ata_port *ap)
         if ((pp->pkt_dma & 7) != 0) {
                 printk("bad alignment for pp->pkt_dma: %08x\n",
                                                 (u32)pp->pkt_dma);
-                goto err_out_kfree2;
+                dma_free_coherent(dev, ADMA_PKT_BYTES,
+                                                pp->pkt, pp->pkt_dma);
+                goto err_out_kfree;
         }
         memset(pp->pkt, 0, ADMA_PKT_BYTES);
         ap->private_data = pp;
         adma_reinit_engine(ap);
         return 0;
 
-err_out_kfree2:
-        kfree(pp);
 err_out_kfree:
         kfree(pp);
 err_out: