1 files changed, 11 insertions, 12 deletions

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 33a15343e8bb..b6e0aac68938 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -551,18 +551,24 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout,
         struct ide_atapi_pc *pc = drive->pc;
         ide_hwif_t *hwif = drive->hwif;
         u32 tf_flags;
-        u16 bcount;
+        u16 bcount = 0;
         u8 scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI);
 
         /* We haven't transferred any data yet */
         pc->xferred = 0;
         pc->cur_pos = pc->buf;
 
-        /* Request to transfer the entire buffer at once */
-        if (drive->media == ide_tape && scsi == 0)
-                bcount = pc->req_xfer;
-        else
+        if (dev_is_idecd(drive)) {
+                tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL;
+        } else if (scsi) {
+                tf_flags = 0;
                 bcount = min(pc->req_xfer, 63 * 1024);
+        } else {
+                tf_flags = IDE_TFLAG_OUT_DEVICE;
+                bcount = ((drive->media == ide_tape) ?
+                                pc->req_xfer :
+                                min(pc->req_xfer, 63 * 1024));
+        }
 
         if (pc->flags & PC_FLAG_DMA_ERROR) {
                 pc->flags &= ~PC_FLAG_DMA_ERROR;
@@ -581,13 +587,6 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout,
         if (!drive->dma)
                 pc->flags &= ~PC_FLAG_DMA_OK;
 
-        if (scsi)
-                tf_flags = 0;
-        else if (dev_is_idecd(drive))
-                tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL;
-        else
-                tf_flags = IDE_TFLAG_OUT_DEVICE;
-
         ide_pktcmd_tf_load(drive, tf_flags, bcount, drive->dma);
 
         /* Issue the packet command */