Re: [PATCH v2 1/2] fpga: Fix dead store fpga-mgr.c

From: Moritz Fischer
Date: Thu Jun 18 2020 - 21:39:10 EST


On Mon, Jun 08, 2020 at 05:54:45AM -0700, trix@xxxxxxxxxx wrote:
> From: Tom Rix <trix@xxxxxxxxxx>
>
> Using clang's scan-build/view this issue was flagged in fpga-mgr.c
>
> drivers/fpga/fpga-mgr.c:585:3: warning: Value stored to 'ret' is never read [deadcode.DeadStores]
> ret = id;
>
> Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
> ---
> drivers/fpga/fpga-mgr.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c
> index e05104f5e40c..f38bab01432e 100644
> --- a/drivers/fpga/fpga-mgr.c
> +++ b/drivers/fpga/fpga-mgr.c
> @@ -581,10 +581,8 @@ struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name,
> return NULL;
>
> id = ida_simple_get(&fpga_mgr_ida, 0, 0, GFP_KERNEL);
> - if (id < 0) {
> - ret = id;
> + if (id < 0)
> goto error_kfree;
> - }
>
> mutex_init(&mgr->ref_mutex);
>
> --
> 2.18.2
>
Applied to for-next,

Thanks!