ide: unify exit paths in task_pio_intr()

There should be no functional changes caused by this patch.

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

diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index a01c2c0..79900a7 100644 (file)
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -326,35 +326,28 @@ static ide_startstop_t task_pio_intr(ide_drive_t *drive)
        if (write == 0) {
                /* Error? */
                if (stat & ATA_ERR)
-                       return task_error(drive, cmd, __func__, stat);
+                       goto out_err;
 
                /* Didn't want any data? Odd. */
                if ((stat & ATA_DRQ) == 0) {
                        /* Command all done? */
-                       if (OK_STAT(stat, ATA_DRDY, ATA_BUSY)) {
-                               ide_finish_cmd(drive, cmd, stat);
-                               return ide_stopped;
-                       }
+                       if (OK_STAT(stat, ATA_DRDY, ATA_BUSY))
+                               goto out_end;
 
                        /* Assume it was a spurious irq */
-                       ide_set_handler(drive, &task_pio_intr, WAIT_WORSTCASE,
-                                       NULL);
-
-                       return ide_started;
+                       goto out_wait;
                }
        } else {
                if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat))
-                       return task_error(drive, cmd, __func__, stat);
+                       goto out_err;
 
                /* Deal with unexpected ATA data phase. */
                if (((stat & ATA_DRQ) == 0) ^ (cmd->nleft == 0))
-                       return task_error(drive, cmd, __func__, stat);
+                       goto out_err;
        }
 
-       if (write && cmd->nleft == 0) {
-               ide_finish_cmd(drive, cmd, stat);
-               return ide_stopped;
-       }
+       if (write && cmd->nleft == 0)
+               goto out_end;
 
        /* Still data left to transfer. */
        ide_pio_datablock(drive, cmd, write);
@@ -363,15 +356,19 @@ static ide_startstop_t task_pio_intr(ide_drive_t *drive)
        if (write == 0 && cmd->nleft == 0) {
                stat = wait_drive_not_busy(drive);
                if (!OK_STAT(stat, 0, BAD_STAT))
-                       return task_error(drive, cmd, __func__, stat);
-               ide_finish_cmd(drive, cmd, stat);
-               return ide_stopped;
-       }
+                       goto out_err;
 
+               goto out_end;
+       }
+out_wait:
        /* Still data left to transfer. */
        ide_set_handler(drive, &task_pio_intr, WAIT_WORSTCASE, NULL);
-
        return ide_started;
+out_end:
+       ide_finish_cmd(drive, cmd, stat);
+       return ide_stopped;
+out_err:
+       return task_error(drive, cmd, __func__, stat);
 }
 
 static ide_startstop_t pre_task_out_intr(ide_drive_t *drive,