19.11.2020 22:52, Nathan Chancellor пишет:
> Clang warns:
>
> drivers/memory/tegra/tegra30-emc.c:1275:15: warning: variable 'np' is
> uninitialized when used here [-Wuninitialized]
> of_node_put(np);
> ^~
> drivers/memory/tegra/tegra30-emc.c:1269:24: note: initialize the
> variable 'np' to silence this warning
> struct device_node *np;
> ^
> = NULL
> 1 warning generated.
>
> There does not need to be an of_node_put call in this error handling
> block after the shuffling of the np assignment. Remove it so there is
> no use of uninitialized memory.
>
> Fixes: 5e00fd90183a ("memory: tegra30-emc: Continue probing if timings are
> missing in device-tree")
> Link: https://github.com/ClangBuiltLinux/linux/issues/1203
> Signed-off-by: Nathan Chancellor <natechancel...@gmail.com>
> ---
> drivers/memory/tegra/tegra30-emc.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/memory/tegra/tegra30-emc.c
> b/drivers/memory/tegra/tegra30-emc.c
> index 3488786da03b..93f9002d32ad 100644
> --- a/drivers/memory/tegra/tegra30-emc.c
> +++ b/drivers/memory/tegra/tegra30-emc.c
> @@ -1271,10 +1271,8 @@ static int tegra_emc_probe(struct platform_device
> *pdev)
> int err;
>
> emc = devm_kzalloc(&pdev->dev, sizeof(*emc), GFP_KERNEL);
> - if (!emc) {
> - of_node_put(np);
> + if (!emc)
> return -ENOMEM;
> - }
>
> emc->mc = devm_tegra_memory_controller_get(&pdev->dev);
> if (IS_ERR(emc->mc))
>
> base-commit: 5e00fd90183ab0103b9f403ce73cb8407ebeb145
>
Reviewed-by: Dmitry Osipenko <dig...@gmail.com>
