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ieee802154: no need to check return value of debugfs_create functions 

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Alexander Aring <alex.aring@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Harry Morris <h.morris@cascoda.com>
Cc: linux-wpan@vger.kernel.org
Cc: netdev@vger.kernel.org
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Greg Kroah-Hartman 2019-08-10 12:17:32 +02:00 committed by David S. Miller
parent 35dc61ebfc
commit 7e174a49bb
3 changed files with 9 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/net/ieee802154/adf7242.c
View File

@ -1158,23 +1158,16 @@ static int adf7242_stats_show(struct seq_file *file, void *offset)
return 0;
}
static int adf7242_debugfs_init(struct adf7242_local *lp)
static void adf7242_debugfs_init(struct adf7242_local *lp)
{
char debugfs_dir_name[DNAME_INLINE_LEN + 1] = "adf7242-";
struct dentry *stats;
strncat(debugfs_dir_name, dev_name(&lp->spi->dev), DNAME_INLINE_LEN);
lp->debugfs_root = debugfs_create_dir(debugfs_dir_name, NULL);
if (IS_ERR_OR_NULL(lp->debugfs_root))
return PTR_ERR_OR_ZERO(lp->debugfs_root);
stats = debugfs_create_devm_seqfile(&lp->spi->dev, "status",
lp->debugfs_root,
adf7242_stats_show);
return PTR_ERR_OR_ZERO(stats);
return 0;
debugfs_create_devm_seqfile(&lp->spi->dev, "status", lp->debugfs_root,
adf7242_stats_show);
}
static const s32 adf7242_powers[] = {

20
drivers/net/ieee802154/at86rf230.c
View File

@ -1626,24 +1626,16 @@ static int at86rf230_stats_show(struct seq_file *file, void *offset)
}
DEFINE_SHOW_ATTRIBUTE(at86rf230_stats);
static int at86rf230_debugfs_init(struct at86rf230_local *lp)
static void at86rf230_debugfs_init(struct at86rf230_local *lp)
{
char debugfs_dir_name[DNAME_INLINE_LEN + 1] = "at86rf230-";
struct dentry *stats;
strncat(debugfs_dir_name, dev_name(&lp->spi->dev), DNAME_INLINE_LEN);
at86rf230_debugfs_root = debugfs_create_dir(debugfs_dir_name, NULL);
if (!at86rf230_debugfs_root)
return -ENOMEM;
stats = debugfs_create_file("trac_stats", 0444,
at86rf230_debugfs_root, lp,
&at86rf230_stats_fops);
if (!stats)
return -ENOMEM;
return 0;
debugfs_create_file("trac_stats", 0444, at86rf230_debugfs_root, lp,
&at86rf230_stats_fops);
}
static void at86rf230_debugfs_remove(void)
@ -1651,7 +1643,7 @@ static void at86rf230_debugfs_remove(void)
debugfs_remove_recursive(at86rf230_debugfs_root);
}
#else
static int at86rf230_debugfs_init(struct at86rf230_local *lp) { return 0; }
static void at86rf230_debugfs_init(struct at86rf230_local *lp) { }
static void at86rf230_debugfs_remove(void) { }
#endif
@ -1751,9 +1743,7 @@ static int at86rf230_probe(struct spi_device *spi)
/* going into sleep by default */
at86rf230_sleep(lp);
rc = at86rf230_debugfs_init(lp);
if (rc)
goto free_dev;
at86rf230_debugfs_init(lp);
rc = ieee802154_register_hw(lp->hw);
if (rc)

9
drivers/net/ieee802154/ca8210.c
View File

@ -3019,14 +3019,7 @@ static int ca8210_test_interface_init(struct ca8210_priv *priv)
priv,
&test_int_fops
);
if (IS_ERR(test->ca8210_dfs_spi_int)) {
dev_err(
&priv->spi->dev,
"Error %ld when creating debugfs node\n",
PTR_ERR(test->ca8210_dfs_spi_int)
);
return PTR_ERR(test->ca8210_dfs_spi_int);
}
debugfs_create_symlink("ca8210", NULL, node_name);
init_waitqueue_head(&test->readq);
return kfifo_alloc(