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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-31 14:08:54 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-31 17:03:59 +0300
commitbc9832c4a1921a662870d51f81a699ec8c18545f (patch)
tree431caba6e0cb5ded42a41a85128a9fc65a41f620 /drivers/usb
parente15bea0f3f75d4ee8f13b5ea76dcd210b24ef226 (diff)
downloadlinux-bc9832c4a1921a662870d51f81a699ec8c18545f.tar.xz
USB: typec: fsusb302: no need to check return value of debugfs_create_dir()
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. Clean up the fsusb302 driver to not care if the root directory was created, as the code should work properly either way. Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/typec/fusb302/fusb302.c15
1 files changed, 4 insertions, 11 deletions
diff --git a/drivers/usb/typec/fusb302/fusb302.c b/drivers/usb/typec/fusb302/fusb302.c
index 9c1eba9ea004..1e68da10bf17 100644
--- a/drivers/usb/typec/fusb302/fusb302.c
+++ b/drivers/usb/typec/fusb302/fusb302.c
@@ -215,20 +215,15 @@ DEFINE_SHOW_ATTRIBUTE(fusb302_debug);
static struct dentry *rootdir;
-static int fusb302_debugfs_init(struct fusb302_chip *chip)
+static void fusb302_debugfs_init(struct fusb302_chip *chip)
{
mutex_init(&chip->logbuffer_lock);
- if (!rootdir) {
+ if (!rootdir)
rootdir = debugfs_create_dir("fusb302", NULL);
- if (!rootdir)
- return -ENOMEM;
- }
chip->dentry = debugfs_create_file(dev_name(chip->dev),
S_IFREG | 0444, rootdir,
chip, &fusb302_debug_fops);
-
- return 0;
}
static void fusb302_debugfs_exit(struct fusb302_chip *chip)
@@ -241,7 +236,7 @@ static void fusb302_debugfs_exit(struct fusb302_chip *chip)
static void fusb302_log(const struct fusb302_chip *chip,
const char *fmt, ...) { }
-static int fusb302_debugfs_init(const struct fusb302_chip *chip) { return 0; }
+static void fusb302_debugfs_init(const struct fusb302_chip *chip) { }
static void fusb302_debugfs_exit(const struct fusb302_chip *chip) { }
#endif
@@ -1773,9 +1768,7 @@ static int fusb302_probe(struct i2c_client *client,
return -EPROBE_DEFER;
}
- ret = fusb302_debugfs_init(chip);
- if (ret < 0)
- return ret;
+ fusb302_debugfs_init(chip);
chip->wq = create_singlethread_workqueue(dev_name(chip->dev));
if (!chip->wq) {