ide: add ide_read_bcount_and_ireason() helper

Add ide_read_bcount_and_ireason() helper and use it instead of ->INB
in {cdrom_newpc,ide_pc}_intr().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 4 insertions, 8 deletions

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 82879a1a89e5..563a380d0e7a 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -895,10 +895,11 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
         struct request *rq = HWGROUP(drive)->rq;
         xfer_func_t *xferfunc;
         ide_expiry_t *expiry = NULL;
-        int dma_error = 0, dma, stat, ireason, len, thislen, uptodate = 0;
+        int dma_error = 0, dma, stat, thislen, uptodate = 0;
         int write = (rq_data_dir(rq) == WRITE) ? 1 : 0;
         unsigned int timeout;
-        u8 lowcyl, highcyl;
+        u16 len;
+        u8 ireason;
 
         /* check for errors */
         dma = info->dma;
@@ -926,12 +927,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
                 goto end_request;
         }
 
-        /* ok we fall to pio :/ */
-        ireason = hwif->INB(hwif->io_ports.nsect_addr) & 0x3;
-        lowcyl  = hwif->INB(hwif->io_ports.lbam_addr);
-        highcyl = hwif->INB(hwif->io_ports.lbah_addr);
-
-        len = lowcyl + (256 * highcyl);
+        ide_read_bcount_and_ireason(drive, &len, &ireason);
 
         thislen = blk_fs_request(rq) ? len : rq->data_len;
         if (thislen > len)