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author | Dave Airlie <airlied@redhat.com> | 2015-12-23 22:08:47 (GMT) |
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committer | Dave Airlie <airlied@redhat.com> | 2015-12-23 22:08:47 (GMT) |
commit | 20f8e032e6dc7053ab803f488e2a8839cd2f69a6 (patch) | |
tree | 406b662934bffa205d90e9435bf96af7dc1a0cb0 /drivers/dma/mic_x100_dma.c | |
parent | ade1ba7346070709856d7e38f8d1a77b7aa710aa (diff) | |
parent | 5b726e06d6e8309e5c9ef4109a32caf27c71dfc8 (diff) | |
download | linux-20f8e032e6dc7053ab803f488e2a8839cd2f69a6.tar.xz |
Backmerge drm-fixes merge into Linus's tree into drm-next.
This merges '5b726e06d6e8309e5c9ef4109a32caf27c71dfc8' into drm-next
Just to resolve some merges to make Daniel's life easier.
Signed-off-by: DAve Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/dma/mic_x100_dma.c')
-rw-r--r-- | drivers/dma/mic_x100_dma.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/dma/mic_x100_dma.c b/drivers/dma/mic_x100_dma.c index 068e920..cddfa8d 100644 --- a/drivers/dma/mic_x100_dma.c +++ b/drivers/dma/mic_x100_dma.c @@ -317,6 +317,7 @@ mic_dma_prep_memcpy_lock(struct dma_chan *ch, dma_addr_t dma_dest, struct mic_dma_chan *mic_ch = to_mic_dma_chan(ch); struct device *dev = mic_dma_ch_to_device(mic_ch); int result; + struct dma_async_tx_descriptor *tx = NULL; if (!len && !flags) return NULL; @@ -324,10 +325,13 @@ mic_dma_prep_memcpy_lock(struct dma_chan *ch, dma_addr_t dma_dest, spin_lock(&mic_ch->prep_lock); result = mic_dma_do_dma(mic_ch, flags, dma_src, dma_dest, len); if (result >= 0) - return allocate_tx(mic_ch); - dev_err(dev, "Error enqueueing dma, error=%d\n", result); + tx = allocate_tx(mic_ch); + + if (!tx) + dev_err(dev, "Error enqueueing dma, error=%d\n", result); + spin_unlock(&mic_ch->prep_lock); - return NULL; + return tx; } static struct dma_async_tx_descriptor * @@ -335,13 +339,14 @@ mic_dma_prep_interrupt_lock(struct dma_chan *ch, unsigned long flags) { struct mic_dma_chan *mic_ch = to_mic_dma_chan(ch); int ret; + struct dma_async_tx_descriptor *tx = NULL; spin_lock(&mic_ch->prep_lock); ret = mic_dma_do_dma(mic_ch, flags, 0, 0, 0); if (!ret) - return allocate_tx(mic_ch); + tx = allocate_tx(mic_ch); spin_unlock(&mic_ch->prep_lock); - return NULL; + return tx; } /* Return the status of the transaction */ |