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| author | Andrew Morton <akpm@linux-foundation.org> | 2009-09-21 18:17:58 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-09-21 18:17:58 +0200 |
| commit | f477f5b3316f39c841aa121a219b82b3a56e7da7 (patch) | |
| tree | 392476186ece4084f85b3c5227853d92ecae79a6 /drivers/dma | |
| parent | raid6test: fix stack overflow (diff) | |
| download | linux-f477f5b3316f39c841aa121a219b82b3a56e7da7.tar.xz linux-f477f5b3316f39c841aa121a219b82b3a56e7da7.zip | |
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.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c index 8fd0b59f1902..96ffab7d37a7 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; |