On 2/1/21 11:55 PM, Dan Carpenter wrote:
> The "ring->addr = addr;" assignment is done a few lines later so we
> can't use "ring->addr" yet. The correct dma_handle is "addr".
>
> Fixes: 650d1603825d ("soc: qcom: ipa: the generic software interface")
> Signed-off-by: Dan Carpenter <[email protected]>
Yikes. Thank you for the fix.
Reviewed-by: Alex Elder <[email protected]>
> ---
> Smatch also complians about:
>
> drivers/net/ipa/gsi.c:1739 gsi_channel_setup()
> warn: missing error code 'ret'
>
> It probably should return -EINVAL, but I'm not positive.
>
> drivers/net/ipa/gsi.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c
> index f79cf3c327c1..b559d14271e2 100644
> --- a/drivers/net/ipa/gsi.c
> +++ b/drivers/net/ipa/gsi.c
> @@ -1373,7 +1373,7 @@ static int gsi_ring_alloc(struct gsi *gsi, struct
> gsi_ring *ring, u32 count)
> /* Hardware requires a 2^n ring size, with alignment equal to size */
> ring->virt = dma_alloc_coherent(dev, size, &addr, GFP_KERNEL);
> if (ring->virt && addr % size) {
> - dma_free_coherent(dev, size, ring->virt, ring->addr);
> + dma_free_coherent(dev, size, ring->virt, addr);
> dev_err(dev, "unable to alloc 0x%zx-aligned ring buffer\n",
> size);
> return -EINVAL; /* Not a good error value, but distinct */
>
