[PATCH] ide: increase timeout in wait_drive_not_busy()

Bartlomiej Zolnierkiewicz
2008-06-15T18:23:40Z

Some ATAPI devices take longer than the current max timeout value to
become ready (i.e. TEAC DV-W28ECW takes 6 ms) so increase the timeout
value to 10 ms.

This fixes kernel.org bugzilla bug #10887:
http://bugzilla.kernel.org/show_bug.cgi?id=10887

Reported-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
draft patch, I'm waiting on feedback from Masanari on this one

drivers/ide/ide-taskfile.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

Index: b/drivers/ide/ide-taskfile.c
===================================================================
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -225,10 +225,10 @@ static u8 wait_drive_not_busy(ide_drive_
u8 stat;

/*
- * Last sector was transfered, wait until drive is ready.
- * This can take up to 10 usec, but we will wait max 1 ms.
+ * Last sector was transfered, wait until device is ready. This can
+ * take up to 6 ms on some ATAPI devices, so we will wait max 10 ms.
*/
- for (retries = 0; retries < 100; retries++) {
+ for (retries = 0; retries < 1000; retries++) {
stat = ide_read_status(drive);

if (stat & BUSY_STAT)