Commit 2207fa5a authored by Borislav Petkov's avatar Borislav Petkov Committed by Bartlomiej Zolnierkiewicz
Browse files

ide-floppy: use drive->pc_callback instead of pc->callback



It is important that drive->pc_callback is set prior to enabling IRQs on the
device since this is called from the IRQ handler. Otherwise it hurts as I learnt
the hard way from the several "Kernel panic - not synching: Fatal exception in
interrupt" during the weekend :).

The if-else block in the IRQ handler is only temporary so that bisect searches
don't break and it'll be removed after converting the remainder of the drivers.

There should be no functionality change resulting from this patch.
Signed-off-by: default avatarBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent d7c26ebb
......@@ -31,7 +31,10 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc,
debug_log("Enter %s - interrupt handler\n", __func__);
if (pc->flags & PC_FLAG_TIMEDOUT) {
pc->callback(drive);
if (drive->media == ide_floppy)
drive->pc_callback(drive);
else
pc->callback(drive);
return ide_stopped;
}
......@@ -97,7 +100,10 @@ cmd_finished:
return ide_stopped;
}
/* Command finished - Call the callback function */
pc->callback(drive);
if (drive->media == ide_floppy)
drive->pc_callback(drive);
else
pc->callback(drive);
return ide_stopped;
}
......
......@@ -354,7 +354,6 @@ static void idefloppy_init_pc(struct ide_atapi_pc *pc)
memset(pc, 0, sizeof(*pc));
pc->buf = pc->pc_buf;
pc->buf_size = IDEFLOPPY_PC_BUFFER_SIZE;
pc->callback = ide_floppy_callback;
}
static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc)
......@@ -474,7 +473,7 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
pc->error = IDEFLOPPY_ERROR_GENERAL;
floppy->failed_pc = NULL;
pc->callback(drive);
drive->pc_callback(drive);
return ide_stopped;
}
......@@ -1040,6 +1039,7 @@ static void idefloppy_setup(ide_drive_t *drive, idefloppy_floppy_t *floppy)
*((u16 *) &gcw) = drive->id->config;
floppy->pc = floppy->pc_stack;
drive->pc_callback = ide_floppy_callback;
if (((gcw[0] & 0x60) >> 5) == 1)
floppy->flags |= IDEFLOPPY_FLAG_DRQ_INTERRUPT;
......
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