IDE: Report errors during drive reset back to user space

Make sure that each error condition during the execution of an
HDIO_DRIVE_RESET ioctl is actually reported to the calling process.
Also, unify the exit path of reset_pollfunc() when returning ide_stopped
since the need of ->port_ops->reset_poll() to be treated specially has
vanished (way back, it seems).

Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Cc: "Alan Cox" <alan@lxorguk.ukuu.org.uk>
Cc: "Randy Dunlap" <randy.dunlap@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/Documentation/ioctl/hdio.txt b/Documentation/ioctl/hdio.txt
index 44d283d6b136..91a6ecbae0bb 100644
--- a/Documentation/ioctl/hdio.txt
+++ b/Documentation/ioctl/hdio.txt
@@ -508,6 +508,8 @@ HDIO_DRIVE_RESET		execute a device reset
 
         error returns:
           EACCES        Access denied:  requires CAP_SYS_ADMIN
+          ENXIO         No such device: phy dead or ctl_addr == 0
+          EIO           I/O error:      reset timed out or hardware error
 
         notes: