diff options
| author | Colin Ian King <colin.king@canonical.com> | 2021-02-03 14:46:52 +0100 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-02-08 13:09:39 +0100 |
| commit | eda38ce482b2c88b27e3a7c8aa1ddffa646f3e7f (patch) | |
| tree | c5f3623acf0596455d27aa8b08fde1c1cd4fd70a /drivers/dma | |
| parent | dmaengine: xilinx_dma: Alloc tx descriptors GFP_NOWAIT (diff) | |
| download | linux-eda38ce482b2c88b27e3a7c8aa1ddffa646f3e7f.tar.xz linux-eda38ce482b2c88b27e3a7c8aa1ddffa646f3e7f.zip | |
dmaengine: dw-axi-dmac: remove redundant null check on desc
The pointer desc is being null checked twice, the second null check
is redundant because desc has not been re-assigned between the
checks. Remove the redundant second null check on desc.
Fixes: ef6fb2d6f1ab ("dmaengine: dw-axi-dmac: simplify descriptor management")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Tested-by: Sia Jee Heng <jee.heng.sia@intel.com>
Reviewed-by: Sia Jee Heng <jee.heng.sia@intel.com>
Addresses-Coverity: ("Logically dead code")
Link: https://lore.kernel.org/r/20210203134652.22618-1-colin.king@canonical.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c index ac3d81b72a15..d9e4ac3edb4e 100644 --- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c +++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c @@ -919,10 +919,6 @@ dma_chan_prep_dma_memcpy(struct dma_chan *dchan, dma_addr_t dst_adr, num++; } - /* Total len of src/dest sg == 0, so no descriptor were allocated */ - if (unlikely(!desc)) - return NULL; - /* Set end-of-link to the last link descriptor of list */ set_desc_last(&desc->hw_desc[num - 1]); /* Managed transfer list */ |