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drivers/dma/ioat/dma_v2.c: fix warnings

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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>
This commit is contained in:
Andrew Morton 2009-09-21 09:17:58 -07:00 committed by Dan Williams
parent 1b6df69309
commit f477f5b331
1 changed files with 3 additions and 2 deletions
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5
drivers/dma/ioat/dma_v2.c
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@ -692,7 +692,8 @@ ioat2_dma_prep_memcpy_lock(struct dma_chan *c, dma_addr_t dma_dest,
/* pass */; /* pass */;
else else
return NULL; return NULL;
for (i = 0; i < num_descs; i++) { i = 0;
do {
size_t copy = min_t(size_t, len, 1 << ioat->xfercap_log); size_t copy = min_t(size_t, len, 1 << ioat->xfercap_log);
desc = ioat2_get_ring_ent(ioat, idx + i); 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; dst += copy;
src += copy; src += copy;
dump_desc_dbg(ioat, desc); dump_desc_dbg(ioat, desc);
} } while (++i < num_descs);
desc->txd.flags = flags; desc->txd.flags = flags;
desc->len = total_len; desc->len = total_len;