Hello.
Bartlomiej Zolnierkiewicz wrote:
From: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Subject: [PATCH] ide: destroy DMA mappings after ending DMA
Move ide_destroy_dmatable() call out from ->dma_end method to
{ide_pc,cdrom_newpc,ide_dma}_intr(), ide_dma_timeout_retry()
and sgiioc4_resetproc().
This causes minor/safe behavior changes w.r.t.:
* cmd64x.c::cmd64{8,x}_dma_end()
* cs5536.c::cs5536_dma_end()
* icside.c::icside_dma_end()
* it821x.c::it821x_dma_end()
* scc_pata.c::__scc_dma_end()
* sl82c105.c::sl82c105_dma_end()
* tx4939ide.c::tx4939ide_dma_end()
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Acked-by: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>
Index: b/drivers/ide/sgiioc4.c
===================================================================
--- a/drivers/ide/sgiioc4.c
+++ b/drivers/ide/sgiioc4.c
@@ -259,7 +259,6 @@ static int sgiioc4_dma_end(ide_drive_t *
}
drive->waiting_for_dma = 0;
- ide_destroy_dmatable(drive);
return dma_stat;
}
@@ -284,6 +283,7 @@ static void
sgiioc4_resetproc(ide_drive_t * drive)
{
sgiioc4_dma_end(drive);
+ ide_destroy_dmatable(drive);
sgiioc4_clearirq(drive);
}
I somewhat doubt that resetproc() can be called with DMA still active...
MBR, Sergei
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