[Sound-open-firmware] [PATCH] ipc: trap dma_start() return value, bail on error

Detected with Coverity, we check dma_start everywhere else.

Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- src/ipc/ipc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/ipc/ipc.c b/src/ipc/ipc.c index fbb1be6..3e23d9c 100644 --- a/src/ipc/ipc.c +++ b/src/ipc/ipc.c @@ -482,7 +482,11 @@ int ipc_get_page_descriptors(struct dma *dmac, uint8_t *page_table, wait_init(&complete);

/* start the copy of page table to DSP */ - dma_start(dmac, chan); + ret = dma_start(dmac, chan); + if (ret < 0) { + trace_ipc_error("ePt"); + goto out; + }

/* wait for DMA to complete */ complete.timeout = PLATFORM_HOST_DMA_TIMEOUT;