From: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
Subject: [PATCH] raid5: panic() on dma_wait_for_async_tx() error
There is not much we can do on dma_wait_for_async_tx() error
so just panic() for now.
Cc: Neil Brown <neilb@xxxxxxx>
Cc: Vinod Koul <vinod.koul@xxxxxxxxx>
Cc: Dan Williams <djbw@xxxxxx>
Cc: Tomasz Figa <t.figa@xxxxxxxxxxx>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/md/raid5.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: b/drivers/md/raid5.c
===================================================================
--- a/drivers/md/raid5.c 2012-11-07 16:25:19.480876012 +0100
+++ b/drivers/md/raid5.c 2012-11-07 16:27:46.244875992 +0100
@@ -3223,7 +3223,9 @@ static void handle_stripe_expansion(stru
/* done submitting copies, wait for them to complete */
if (tx) {
async_tx_ack(tx);
- dma_wait_for_async_tx(tx);
+ if (dma_wait_for_async_tx(tx) != DMA_SUCCESS)
+ panic("%s: DMA error waiting for transaction\n",
+ __func__);
}
}
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