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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-03-12 17:23:56 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-03-13 10:09:28 +1100 |
| commit | 25c0a7b83297f10186a7a1ee5c563f005dfabc44 (patch) | |
| tree | 717a3d23d732ca7570b4bbef3540ffeabe35bdee /drivers/block/viodasd.c | |
| parent | 98cddbfb3218925c35697562f7d9df692bf6a436 (diff) | |
| download | linux-25c0a7b83297f10186a7a1ee5c563f005dfabc44.tar.gz linux-25c0a7b83297f10186a7a1ee5c563f005dfabc44.tar.bz2 linux-25c0a7b83297f10186a7a1ee5c563f005dfabc44.zip | |
[POWERPC] Fix viodasd driver with scatterlist debug
The iSeries viodasd drivers does some very strange things with
scatterlists, one of these causing a BUG_ON to trigger when
scatterlist debugging is enabled due to initializing the
scatterlist with memset instead of sg_init_table().
This fixes it by using sg_init_table(). The rest of the stuff
it does to that poor list is still pretty awful but it will work.
I may look into fixing things in a nicer way some other time.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'drivers/block/viodasd.c')
| -rw-r--r-- | drivers/block/viodasd.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c index 9e61fca46117..41ca721d2523 100644 --- a/drivers/block/viodasd.c +++ b/drivers/block/viodasd.c @@ -528,8 +528,7 @@ static int block_event_to_scatterlist(const struct vioblocklpevent *bevent, numsg = VIOMAXBLOCKDMA; *total_len = 0; - memset(sg, 0, sizeof(sg[0]) * VIOMAXBLOCKDMA); - + sg_init_table(sg, VIOMAXBLOCKDMA); for (i = 0; (i < numsg) && (rw_data->dma_info[i].len > 0); ++i) { sg_dma_address(&sg[i]) = rw_data->dma_info[i].token; sg_dma_len(&sg[i]) = rw_data->dma_info[i].len; |