X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fscsi%2Fsata_qstor.c;h=80480f0fb2b82abf2ebdcbe156abd994d9b9ff27;hb=7b875affd49fbc8978a1a898a0a80ebfff11f8c6;hp=d274ab2357812924a1beb7aad481112cd17dcd4b;hpb=e130bedb7ce718a8eb6b56a3806b96281f618111;p=powerpc.git

diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c
index d274ab2357..80480f0fb2 100644
--- a/drivers/scsi/sata_qstor.c
+++ b/drivers/scsi/sata_qstor.c
@@ -41,7 +41,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME	"sata_qstor"
-#define DRV_VERSION	"0.04"
+#define DRV_VERSION	"0.05"
 
 enum {
 	QS_PORTS		= 4,
@@ -170,7 +170,7 @@ static const struct ata_port_operations qs_ata_ops = {
 	.bmdma_status		= qs_bmdma_status,
 };
 
-static struct ata_port_info qs_port_info[] = {
+static const struct ata_port_info qs_port_info[] = {
 	/* board_2068_idx */
 	{
 		.sht		= &qs_ata_sht,
@@ -184,7 +184,7 @@ static struct ata_port_info qs_port_info[] = {
 	},
 };
 
-static struct pci_device_id qs_ata_pci_tbl[] = {
+static const struct pci_device_id qs_ata_pci_tbl[] = {
 	{ PCI_VENDOR_ID_PDC, 0x2068, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 	  board_2068_idx },
 
@@ -268,7 +268,7 @@ static void qs_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
 	writel(val, (void __iomem *)(ap->ioaddr.scr_addr + (sc_reg * 8)));
 }
 
-static void qs_fill_sg(struct ata_queued_cmd *qc)
+static unsigned int qs_fill_sg(struct ata_queued_cmd *qc)
 {
 	struct scatterlist *sg;
 	struct ata_port *ap = qc->ap;
@@ -277,7 +277,7 @@ static void qs_fill_sg(struct ata_queued_cmd *qc)
 	u8 *prd = pp->pkt + QS_CPB_BYTES;
 
 	assert(qc->__sg != NULL);
-	assert(qc->n_elem > 0);
+	assert(qc->n_elem > 0 || qc->pad_len > 0);
 
 	nelem = 0;
 	ata_for_each_sg(sg, qc) {
@@ -296,6 +296,8 @@ static void qs_fill_sg(struct ata_queued_cmd *qc)
 					(unsigned long long)addr, len);
 		nelem++;
 	}
+
+	return nelem;
 }
 
 static void qs_qc_prep(struct ata_queued_cmd *qc)
@@ -304,6 +306,7 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
 	u8 dflags = QS_DF_PORD, *buf = pp->pkt;
 	u8 hflags = QS_HF_DAT | QS_HF_IEN | QS_HF_VLD;
 	u64 addr;
+	unsigned int nelem;
 
 	VPRINTK("ENTER\n");
 
@@ -313,7 +316,7 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
 		return;
 	}
 
-	qs_fill_sg(qc);
+	nelem = qs_fill_sg(qc);
 
 	if ((qc->tf.flags & ATA_TFLAG_WRITE))
 		hflags |= QS_HF_DIRO;
@@ -324,7 +327,7 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
 	buf[ 0] = QS_HCB_HDR;
 	buf[ 1] = hflags;
 	*(__le32 *)(&buf[ 4]) = cpu_to_le32(qc->nsect * ATA_SECT_SIZE);
-	*(__le32 *)(&buf[ 8]) = cpu_to_le32(qc->n_elem);
+	*(__le32 *)(&buf[ 8]) = cpu_to_le32(nelem);
 	addr = ((u64)pp->pkt_dma) + QS_CPB_BYTES;
 	*(__le64 *)(&buf[16]) = cpu_to_le64(addr);
 
@@ -406,8 +409,8 @@ static inline unsigned int qs_intr_pkt(struct ata_host_set *host_set)
 					case 3: /* device error */
 						pp->state = qs_state_idle;
 						qs_enter_reg_mode(qc->ap);
-						ata_qc_complete(qc,
-							ac_err_mask(sDST));
+						qc->err_mask |= ac_err_mask(sDST);
+						ata_qc_complete(qc);
 						break;
 					default:
 						break;
@@ -444,7 +447,8 @@ static inline unsigned int qs_intr_mmio(struct ata_host_set *host_set)
 
 				/* complete taskfile transaction */
 				pp->state = qs_state_idle;
-				ata_qc_complete(qc, ac_err_mask(status));
+				qc->err_mask |= ac_err_mask(status);
+				ata_qc_complete(qc);
 				handled = 1;
 			}
 		}