ide-cd: fix "missing data" handling in cdrom_pc_intr()

If drive still wants to transfer the data we need to pad the transfer
instead of just finishing the request.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 75539fd0829c..cbe4f1a04c14 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1500,9 +1500,11 @@ static ide_startstop_t cdrom_pc_intr (ide_drive_t *drive)
 
         if (xferfunc) {
                 if (!rq->data) {
+                        printk(KERN_ERR "%s: confused, missing data\n",
+                                        drive->name);
                         blk_dump_rq_flags(rq, write ? "cdrom_pc_intr, write"
                                                     : "cdrom_pc_intr, read");
-                        goto confused;
+                        goto pad;
                 }
                 /* Transfer the data. */
                 xferfunc(drive, rq->data, thislen);
@@ -1515,7 +1517,6 @@ static ide_startstop_t cdrom_pc_intr (ide_drive_t *drive)
                 if (write && blk_sense_request(rq))
                         rq->sense_len += thislen;
         } else {
-confused:
                 printk (KERN_ERR "%s: cdrom_pc_intr: The drive "
                         "appears confused (ireason = 0x%02x). "
                         "Trying to recover by ending request.\n",
@@ -1524,7 +1525,7 @@ confused:
                 cdrom_end_request(drive, 0);
                 return ide_stopped;
         }
-
+pad:
         /*
          * If we haven't moved enough data to satisfy the drive,
          * add some padding.