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sdio: make sleep on error interruptable 

Make sure we can be woken from the forced sleep that is done on errors.
Removing a card often results in -ENOMEDIUM or -EILSEQ so we previously
locked up the removal process for a second.

We could completely exit on -ENOMEDIUM, but it might be a transient
glitch so treat it like any other error.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Pierre Ossman 2008-08-31 13:38:54 +02:00
parent 04cf585d29
commit e633b7bcec
1 changed files with 9 additions and 4 deletions
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13
drivers/mmc/core/sdio_irq.c
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@ -5,6 +5,8 @@
* Created: June 18, 2007
* Copyright: MontaVista Software Inc.
*
* Copyright 2008 Pierre Ossman
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
@ -107,11 +109,14 @@ static int sdio_irq_thread(void *_host)
/*
* Give other threads a chance to run in the presence of
* errors. FIXME: determine if due to card removal and
* possibly exit this thread if so.
* errors.
*/
if (ret < 0)
ssleep(1);
if (ret < 0) {
set_current_state(TASK_INTERRUPTIBLE);
if (!kthread_should_stop())
schedule_timeout(HZ);
set_current_state(TASK_RUNNING);
}
/*
* Adaptive polling frequency based on the assumption