[PATCH] net: ethernet: mediatek: remove return value check of `mtk_wed_hw_add_debugfs`

[PATCH] net: ethernet: mediatek: remove return value check of `mtk_wed_hw_add_debugfs`

[Wang Zhang]

Smatch complains that:
mtk_wed_hw_add_debugfs() warn: 'dir' is an error pointer or valid

Debugfs checks are generally not supposed to be checked
for errors and it is not necessary here.

fix it by just deleting the dead code.

Signed-off-by: Wang Zhang <silver_code@hust.edu.cn>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
---
This issue is found by static analyzer. The patched code has passed
Smatch checker, but remains untested on mediatek soc.
---
 drivers/net/ethernet/mediatek/mtk_wed_debugfs.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_wed_debugfs.c b/drivers/net/ethernet/mediatek/mtk_wed_debugfs.c
index 56f663439721..b244c02c5b51 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed_debugfs.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed_debugfs.c
@@ -252,8 +252,6 @@ void mtk_wed_hw_add_debugfs(struct mtk_wed_hw *hw)
 
 	snprintf(hw->dirname, sizeof(hw->dirname), "wed%d", hw->index);
 	dir = debugfs_create_dir(hw->dirname, NULL);
-	if (!dir)
-		return;
 
 	hw->debugfs_dir = dir;
 	debugfs_create_u32("regidx", 0600, dir, &hw->debugfs_reg);
-- 
2.34.1

Re: [PATCH] net: ethernet: mediatek: remove return value check of `mtk_wed_hw_add_debugfs`

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem@davemloft.net>:

On Fri, 21 Apr 2023 23:10:09 +0800 you wrote:
> Smatch complains that:
> mtk_wed_hw_add_debugfs() warn: 'dir' is an error pointer or valid
> 
> Debugfs checks are generally not supposed to be checked
> for errors and it is not necessary here.
> 
> fix it by just deleting the dead code.
> 
> [...]

Here is the summary with links:
  - net: ethernet: mediatek: remove return value check of `mtk_wed_hw_add_debugfs`
    https://git.kernel.org/netdev/net/c/b148b9abc844

You are awesome, thank you!
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