diff options
Diffstat (limited to 'drivers/scsi/NCR5380.c')
| -rw-r--r-- | drivers/scsi/NCR5380.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index b3e5b6b57d83..e05cf505f0d4 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -1431,7 +1431,7 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, register unsigned char p = *phase; register unsigned char *d = *data; unsigned char tmp; - int foo; + int result; if ((tmp = (NCR5380_read(STATUS_REG) & PHASE_MASK)) != p) { *phase = tmp; @@ -1505,9 +1505,9 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, */ if (p & SR_IO) { - foo = NCR5380_dma_recv_setup(instance, d, + result = NCR5380_dma_recv_setup(instance, d, hostdata->flags & FLAG_DMA_FIXUP ? c - 1 : c); - if (!foo && (hostdata->flags & FLAG_DMA_FIXUP)) { + if (!result && (hostdata->flags & FLAG_DMA_FIXUP)) { /* * The workaround was to transfer fewer bytes than we * intended to with the pseudo-DMA read function, wait for @@ -1525,19 +1525,19 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, if (NCR5380_poll_politely(instance, BUS_AND_STATUS_REG, BASR_DRQ, BASR_DRQ, HZ) < 0) { - foo = -1; + result = -1; shost_printk(KERN_ERR, instance, "PDMA read: DRQ timeout\n"); } if (NCR5380_poll_politely(instance, STATUS_REG, SR_REQ, 0, HZ) < 0) { - foo = -1; + result = -1; shost_printk(KERN_ERR, instance, "PDMA read: !REQ timeout\n"); } d[c - 1] = NCR5380_read(INPUT_DATA_REG); } } else { - foo = NCR5380_dma_send_setup(instance, d, c); - if (!foo && (hostdata->flags & FLAG_DMA_FIXUP)) { + result = NCR5380_dma_send_setup(instance, d, c); + if (!result && (hostdata->flags & FLAG_DMA_FIXUP)) { /* * Wait for the last byte to be sent. If REQ is being asserted for * the byte we're interested, we'll ACK it and it will go false. @@ -1545,7 +1545,7 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, if (NCR5380_poll_politely2(instance, BUS_AND_STATUS_REG, BASR_DRQ, BASR_DRQ, BUS_AND_STATUS_REG, BASR_PHASE_MATCH, 0, HZ) < 0) { - foo = -1; + result = -1; shost_printk(KERN_ERR, instance, "PDMA write: DRQ and phase timeout\n"); } } @@ -1555,8 +1555,7 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, NCR5380_read(RESET_PARITY_INTERRUPT_REG); *data = d + c; *count = 0; - *phase = NCR5380_read(STATUS_REG) & PHASE_MASK; - return foo; + return result; } /* @@ -1652,7 +1651,7 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) if (!cmd->device->borken) transfersize = NCR5380_dma_xfer_len(instance, cmd, phase); - if (transfersize) { + if (transfersize > 0) { len = transfersize; if (NCR5380_transfer_dma(instance, &phase, &len, (unsigned char **)&cmd->SCp.ptr)) { |