On Sat, Sep 05, 2020 at 08:25:03PM +0800, YueHaibing wrote:
> In case of error, the function devm_ioremap_wc() returns NULL pointer
> not ERR_PTR(). The IS_ERR() test in the return value check should be
> replaced with NULL test.
>
> Fixes: 6edbe024ba17 ("remoteproc: k3-dsp: Add a remoteproc driver of K3 C66x DSPs")
> Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
> Acked-by: Suman Anna <s-anna@xxxxxx>
Reviewed-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
> ---
> v2: return ENOMEM instead of EBUSY, use corret Fixes tag
> ---
> drivers/remoteproc/ti_k3_dsp_remoteproc.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/remoteproc/ti_k3_dsp_remoteproc.c b/drivers/remoteproc/ti_k3_dsp_remoteproc.c
> index 9011e477290c..f373df35d7d0 100644
> --- a/drivers/remoteproc/ti_k3_dsp_remoteproc.c
> +++ b/drivers/remoteproc/ti_k3_dsp_remoteproc.c
> @@ -445,10 +445,10 @@ static int k3_dsp_rproc_of_get_memories(struct platform_device *pdev,
>
> kproc->mem[i].cpu_addr = devm_ioremap_wc(dev, res->start,
> resource_size(res));
> - if (IS_ERR(kproc->mem[i].cpu_addr)) {
> + if (!kproc->mem[i].cpu_addr) {
> dev_err(dev, "failed to map %s memory\n",
> data->mems[i].name);
> - return PTR_ERR(kproc->mem[i].cpu_addr);
> + return -ENOMEM;
> }
> kproc->mem[i].bus_addr = res->start;
> kproc->mem[i].dev_addr = data->mems[i].dev_addr;
> --
> 2.17.1
>
>
