IDE: Report errors during drive reset back to user space

[pandora-kernel.git] / drivers / ide / ide-iops.c

diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 80ad4f2..44aaec2 100644 (file)
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -905,6 +905,14 @@ void ide_execute_pkt_cmd(ide_drive_t *drive)
 }
 EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);
 
+static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
+{
+       struct request *rq = drive->hwif->hwgroup->rq;
+
+       if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
+               ide_end_request(drive, err ? err : 1, 0);
+}
+
 /* needed below */
 static ide_startstop_t do_reset1 (ide_drive_t *, int);
 
@@ -940,7 +948,7 @@ static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive)
        }
        /* done polling */
        hwgroup->polling = 0;
-       hwgroup->resetting = 0;
+       ide_complete_drive_reset(drive, 0);
        return ide_stopped;
 }
 
@@ -956,12 +964,14 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
        ide_hwif_t *hwif        = HWIF(drive);
        const struct ide_port_ops *port_ops = hwif->port_ops;
        u8 tmp;
+       int err = 0;
 
        if (port_ops && port_ops->reset_poll) {
-               if (port_ops->reset_poll(drive)) {
+               err = port_ops->reset_poll(drive);
+               if (err) {
                        printk(KERN_ERR "%s: host reset_poll failure for %s.\n",
                                hwif->name, drive->name);
-                       return ide_stopped;
+                       goto out;
                }
        }
 
@@ -975,6 +985,7 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
                }
                printk("%s: reset timed-out, status=0x%02x\n", hwif->name, tmp);
                drive->failures++;
+               err = -EIO;
        } else  {
                printk("%s: reset: ", hwif->name);
                tmp = ide_read_error(drive);
@@ -1001,10 +1012,12 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
                        if (tmp & 0x80)
                                printk("; slave: failed");
                        printk("\n");
+                       err = -EIO;
                }
        }
+out:
        hwgroup->polling = 0;   /* done polling */
-       hwgroup->resetting = 0; /* done reset attempt */
+       ide_complete_drive_reset(drive, err);
        return ide_stopped;
 }
 
@@ -1090,7 +1103,6 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 
        /* For an ATAPI device, first try an ATAPI SRST. */
        if (drive->media != ide_disk && !do_not_try_atapi) {
-               hwgroup->resetting = 1;
                pre_reset(drive);
                SELECT_DRIVE(drive);
                udelay (20);
@@ -1112,10 +1124,10 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 
        if (io_ports->ctl_addr == 0) {
                spin_unlock_irqrestore(&ide_lock, flags);
+               ide_complete_drive_reset(drive, -ENXIO);
                return ide_stopped;
        }
 
-       hwgroup->resetting = 1;
        /*
         * Note that we also set nIEN while resetting the device,
         * to mask unwanted interrupts from the interface during the reset.