Hi Nicolas,
On 26/11/2018 12:15, Nicolas Saenz Julienne wrote:
> After finding a "firmware" dt node arm_sdei tries to match it's
> compatible string with it. To do so it's calling of_find_matching_node()
> which already takes care of decreasing the refcount on the "firmware"
> node. We are then incorrectly decreasing the refcount on that node
> again.
>
> This patch removes the unwarranted call to of_node_put().
>
> Fixes: ad6eb31ef903 ("firmware: arm_sdei: Add driver for Software Delegated
> Exceptions")
> Signed-off-by: Nicolas Saenz Julienne <[email protected]>
Thanks!, I agree this is unwarranted.
Is there a tool that picks these up? I remember sparse giving me a headache, but
I don't remember this one... I probably cargo-culted it from somewhere else.
Acked-by: James Morse <[email protected]>
Thanks,
James
> ---
> drivers/firmware/arm_sdei.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/firmware/arm_sdei.c b/drivers/firmware/arm_sdei.c
> index 1ea71640fdc2..dffb47c6b480 100644
> --- a/drivers/firmware/arm_sdei.c
> +++ b/drivers/firmware/arm_sdei.c
> @@ -1017,7 +1017,6 @@ static bool __init sdei_present_dt(void)
> return false;
>
> np = of_find_matching_node(fw_np, sdei_of_match);
> - of_node_put(fw_np);
> if (!np)
> return false;
>
>
