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| author | Jens Axboe <axboe@fb.com> | 2014-04-15 14:02:24 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-04-15 14:02:24 -0600 |
| commit | f89e0dd9d1a72fdf6b8958bcadfa6abf84f3cae0 (patch) | |
| tree | 6d4ca8c67dc22d1c81053392078588f9ab3804b5 /drivers/dma/cppi41.c | |
| parent | 21f9fcd81593e201172160853b8647336fb81f4f (diff) | |
| parent | c9eaa447e77efe77b7fa4c953bd62de8297fd6c5 (diff) | |
Merge tag 'v3.15-rc1' into for-3.16/core
We don't like this, but things have diverged with the blk-mq fixes
in 3.15-rc1. So merge it in.
Diffstat (limited to 'drivers/dma/cppi41.c')
| -rw-r--r-- | drivers/dma/cppi41.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c index c18aebf7d5a..d028f36ae65 100644 --- a/drivers/dma/cppi41.c +++ b/drivers/dma/cppi41.c @@ -620,12 +620,15 @@ static int cppi41_stop_chan(struct dma_chan *chan) u32 desc_phys; int ret; + desc_phys = lower_32_bits(c->desc_phys); + desc_num = (desc_phys - cdd->descs_phys) / sizeof(struct cppi41_desc); + if (!cdd->chan_busy[desc_num]) + return 0; + ret = cppi41_tear_down_chan(c); if (ret) return ret; - desc_phys = lower_32_bits(c->desc_phys); - desc_num = (desc_phys - cdd->descs_phys) / sizeof(struct cppi41_desc); WARN_ON(!cdd->chan_busy[desc_num]); cdd->chan_busy[desc_num] = NULL; |