| Message ID | YMCQDTSyG8UuQoh0@mwanda |
|---|---|
| State | Accepted |
| Headers | show |
| Series | memory: tegra: Delete dead debugfs checking code | expand |
On Wed, 9 Jun 2021 12:55:25 +0300, Dan Carpenter wrote: > The debugfs_create_dir() function does not return NULL, it returns error > pointers. But in normal situations like this where the caller is not > dereferencing "emc->debugfs.root" then we are not supposed to check the > return. So instead of fixing these checks, we should delete them. Applied, thanks! [1/1] memory: tegra: Delete dead debugfs checking code commit: c7c65703260c88a3e4d7387b2d03023c3625c6d4 Best regards,
diff --git a/drivers/memory/tegra/tegra124-emc.c b/drivers/memory/tegra/tegra124-emc.c index a21ca8e0841a..908f8d5392b2 100644 --- a/drivers/memory/tegra/tegra124-emc.c +++ b/drivers/memory/tegra/tegra124-emc.c @@ -1269,10 +1269,6 @@ static void emc_debugfs_init(struct device *dev, struct tegra_emc *emc) } emc->debugfs.root = debugfs_create_dir("emc", NULL); - if (!emc->debugfs.root) { - dev_err(dev, "failed to create debugfs directory\n"); - return; - } debugfs_create_file("available_rates", 0444, emc->debugfs.root, emc, &tegra_emc_debug_available_rates_fops); diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c index a534197a5fb2..c3462dbc8c22 100644 --- a/drivers/memory/tegra/tegra20-emc.c +++ b/drivers/memory/tegra/tegra20-emc.c @@ -776,10 +776,6 @@ static void tegra_emc_debugfs_init(struct tegra_emc *emc) } emc->debugfs.root = debugfs_create_dir("emc", NULL); - if (!emc->debugfs.root) { - dev_err(emc->dev, "failed to create debugfs directory\n"); - return; - } debugfs_create_file("available_rates", 0444, emc->debugfs.root, emc, &tegra_emc_debug_available_rates_fops); diff --git a/drivers/memory/tegra/tegra210-emc-core.c b/drivers/memory/tegra/tegra210-emc-core.c index 5f224796e32e..06c0f17fa429 100644 --- a/drivers/memory/tegra/tegra210-emc-core.c +++ b/drivers/memory/tegra/tegra210-emc-core.c @@ -1759,10 +1759,6 @@ static void tegra210_emc_debugfs_init(struct tegra210_emc *emc) } emc->debugfs.root = debugfs_create_dir("emc", NULL); - if (!emc->debugfs.root) { - dev_err(dev, "failed to create debugfs directory\n"); - return; - } debugfs_create_file("available_rates", 0444, emc->debugfs.root, emc, &tegra210_emc_debug_available_rates_fops); diff --git a/drivers/memory/tegra/tegra30-emc.c b/drivers/memory/tegra/tegra30-emc.c index 63e1983f8a0d..7e21a852f2e1 100644 --- a/drivers/memory/tegra/tegra30-emc.c +++ b/drivers/memory/tegra/tegra30-emc.c @@ -1354,10 +1354,6 @@ static void tegra_emc_debugfs_init(struct tegra_emc *emc) } emc->debugfs.root = debugfs_create_dir("emc", NULL); - if (!emc->debugfs.root) { - dev_err(emc->dev, "failed to create debugfs directory\n"); - return; - } debugfs_create_file("available_rates", 0444, emc->debugfs.root, emc, &tegra_emc_debug_available_rates_fops);
The debugfs_create_dir() function does not return NULL, it returns error pointers. But in normal situations like this where the caller is not dereferencing "emc->debugfs.root" then we are not supposed to check the return. So instead of fixing these checks, we should delete them. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> --- drivers/memory/tegra/tegra124-emc.c | 4 ---- drivers/memory/tegra/tegra20-emc.c | 4 ---- drivers/memory/tegra/tegra210-emc-core.c | 4 ---- drivers/memory/tegra/tegra30-emc.c | 4 ---- 4 files changed, 16 deletions(-)