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-rw-r--r--drivers/ide/ide-iops.c4
-rw-r--r--drivers/ide/ide.c5
-rw-r--r--include/linux/ide.h3
3 files changed, 12 insertions, 0 deletions
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 77703acaec17..badde6331775 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -998,6 +998,7 @@ static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive)
}
/* done polling */
hwgroup->polling = 0;
+ hwgroup->resetting = 0;
return ide_stopped;
}
@@ -1057,6 +1058,7 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
}
}
hwgroup->polling = 0; /* done polling */
+ hwgroup->resetting = 0; /* done reset attempt */
return ide_stopped;
}
@@ -1143,6 +1145,7 @@ 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);
@@ -1168,6 +1171,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
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.
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 97b162ca9885..287a66201150 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -1364,6 +1364,11 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
spin_lock_irqsave(&ide_lock, flags);
+ if (HWGROUP(drive)->resetting) {
+ spin_unlock_irqrestore(&ide_lock, flags);
+ return -EBUSY;
+ }
+
ide_abort(drive, "drive reset");
BUG_ON(HWGROUP(drive)->handler);
diff --git a/include/linux/ide.h b/include/linux/ide.h
index a9a9e33e448f..07d8d725541f 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -825,6 +825,9 @@ typedef struct hwgroup_s {
unsigned int sleeping : 1;
/* BOOL: polling active & poll_timeout field valid */
unsigned int polling : 1;
+ /* BOOL: in a polling reset situation. Must not trigger another reset yet */
+ unsigned int resetting : 1;
+
/* current drive */
ide_drive_t *drive;
/* ptr to current hwif in linked-list */