dmaengine: cppi: remove unused and bogus check



In cppi41_dma_prep_slave_sg() variable num is initialized to zero, but never
updated and a BUG_ON is checked for it being greater than zero which will be
always false.

Remove the bogus check and this variable

Reported-by: David Binderman <linuxdev.baldrick@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

parent 4cad91b2

drivers/dma/cppi41.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -497,16 +497,13 @@ static struct dma_async_tx_descriptor *cppi41_dma_prep_slave_sg(
		struct cppi41_desc *d;
		struct scatterlist *sg;
		unsigned int i;
		unsigned int num;

		num = 0;
		d = c->desc;
		for_each_sg(sgl, sg, sg_len, i) {
		u32 addr;
		u32 len;

		/* We need to use more than one desc once musb supports sg */
		BUG_ON(num > 0);
		addr = lower_32_bits(sg_dma_address(sg));
		len = sg_dma_len(sg);