Messages in this thread Patch in this message | | | Date | Sun, 4 Nov 2007 13:10:14 +0100 (CET) | From | Stefan Richter <> | Subject | [PATCH 3/3 2.6.24-rc1-gitX] firewire: fw-sbp2: s/g list fix |
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Don't panic on chained s/g lists. Only compile-tested.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> --- drivers/firewire/fw-sbp2.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
Index: linux/drivers/firewire/fw-sbp2.c =================================================================== --- linux.orig/drivers/firewire/fw-sbp2.c +++ linux/drivers/firewire/fw-sbp2.c @@ -1100,9 +1100,9 @@ sbp2_map_scatterlist(struct sbp2_command * elements larger than 65535 bytes, some IOMMUs may merge sg elements * during DMA mapping, and Linux currently doesn't prevent this. */ - for (i = 0, j = 0; i < count; i++) { - sg_len = sg_dma_len(sg + i); - sg_addr = sg_dma_address(sg + i); + for (i = 0, j = 0; i < count; i++, sg = sg_next(sg)) { + sg_len = sg_dma_len(sg); + sg_addr = sg_dma_address(sg); while (sg_len) { /* FIXME: This won't get us out of the pinch. */ if (unlikely(j >= ARRAY_SIZE(orb->page_table))) { -- Stefan Richter -=====-=-=== =-== --=-- http://arcgraph.de/sr/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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