diff options
| author | Justin Maggard <jmaggard10@gmail.com> | 2016-10-04 13:17:58 -0700 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-10-05 06:18:09 +0530 |
| commit | c84750906b4818d4929fbf73a4ae6c113b94f52b (patch) | |
| tree | bd4dc345a73fc9e3685218c12225d72176e1e14b /crypto/async_tx/async_pq.c | |
| parent | 96622bde4c3fc0b442d25646f70043a884d54285 (diff) | |
| download | lwn-c84750906b4818d4929fbf73a4ae6c113b94f52b.tar.gz lwn-c84750906b4818d4929fbf73a4ae6c113b94f52b.zip | |
async_pq_val: fix DMA memory leak
Add missing dmaengine_unmap_put(), so we don't OOM during RAID6 sync.
Fixes: 1786b943dad0 ("async_pq_val: convert to dmaengine_unmap_data")
Signed-off-by: Justin Maggard <jmaggard@netgear.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'crypto/async_tx/async_pq.c')
| -rw-r--r-- | crypto/async_tx/async_pq.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/crypto/async_tx/async_pq.c b/crypto/async_tx/async_pq.c index 08b3ac68952b..f83de99d7d71 100644 --- a/crypto/async_tx/async_pq.c +++ b/crypto/async_tx/async_pq.c @@ -368,8 +368,6 @@ async_syndrome_val(struct page **blocks, unsigned int offset, int disks, dma_set_unmap(tx, unmap); async_tx_submit(chan, tx, submit); - - return tx; } else { struct page *p_src = P(blocks, disks); struct page *q_src = Q(blocks, disks); @@ -424,9 +422,11 @@ async_syndrome_val(struct page **blocks, unsigned int offset, int disks, submit->cb_param = cb_param_orig; submit->flags = flags_orig; async_tx_sync_epilog(submit); - - return NULL; + tx = NULL; } + dmaengine_unmap_put(unmap); + + return tx; } EXPORT_SYMBOL_GPL(async_syndrome_val); |