intel_mid_dma: fix the WARN_ONs
Moved the WARN_ON to BUG_ON, as WARN_ON if hit,
can cause null pointer derefrences
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c
index 2ae1086..ef7ffb8 100644
--- a/drivers/dma/intel_mid_dma.c
+++ b/drivers/dma/intel_mid_dma.c
@@ -581,15 +581,15 @@
enum intel_mid_dma_width width = 0;
pr_debug("MDMA: Prep for memcpy\n");
- WARN_ON(!chan);
+ BUG_ON(!chan);
if (!len)
return NULL;
mids = chan->private;
- WARN_ON(!mids);
+ BUG_ON(!mids);
midc = to_intel_mid_dma_chan(chan);
- WARN_ON(!midc);
+ BUG_ON(!midc);
pr_debug("MDMA:called for DMA %x CH %d Length %zu\n",
midc->dma->pci_id, midc->ch_id, len);