summaryrefslogtreecommitdiffstats
path: root/drivers/dma
diff options
context:
space:
mode:
authorAndrew Morton <akpm@linux-foundation.org>2009-09-21 09:17:58 -0700
committerDan Williams <dan.j.williams@intel.com>2009-09-21 09:17:58 -0700
commitf477f5b3316f39c841aa121a219b82b3a56e7da7 (patch)
tree392476186ece4084f85b3c5227853d92ecae79a6 /drivers/dma
parent1b6df6930994d5d027375b07ac9da63644eb5758 (diff)
downloadop-kernel-dev-f477f5b3316f39c841aa121a219b82b3a56e7da7.zip
op-kernel-dev-f477f5b3316f39c841aa121a219b82b3a56e7da7.tar.gz
drivers/dma/ioat/dma_v2.c: fix warnings
drivers/dma/ioat/dma_v2.c: In function 'ioat2_dma_prep_memcpy_lock': drivers/dma/ioat/dma_v2.c:680: warning: 'hw' may be used uninitialized in this function drivers/dma/ioat/dma_v2.c:681: warning: 'desc' may be used uninitialized in this function Cc: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/ioat/dma_v2.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index 8fd0b59..96ffab7 100644
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -692,7 +692,8 @@ ioat2_dma_prep_memcpy_lock(struct dma_chan *c, dma_addr_t dma_dest,
/* pass */;
else
return NULL;
- for (i = 0; i < num_descs; i++) {
+ i = 0;
+ do {
size_t copy = min_t(size_t, len, 1 << ioat->xfercap_log);
desc = ioat2_get_ring_ent(ioat, idx + i);
@@ -707,7 +708,7 @@ ioat2_dma_prep_memcpy_lock(struct dma_chan *c, dma_addr_t dma_dest,
dst += copy;
src += copy;
dump_desc_dbg(ioat, desc);
- }
+ } while (++i < num_descs);
desc->txd.flags = flags;
desc->len = total_len;
OpenPOWER on IntegriCloud