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| author | Michael Walle <michael@walle.cc> | 2022-04-05 11:24:51 +0200 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2022-05-17 05:52:59 -0700 |
| commit | 1ad6c3b7ef132e1d8c5d606008069724625c8daf (patch) | |
| tree | c90b3153ca16a77a6605148c66d2cd2fda75dea7 /Documentation/hwmon | |
| parent | 752b927951eaa6297bffc12efe603df10496566e (diff) | |
| download | linux-stable-1ad6c3b7ef132e1d8c5d606008069724625c8daf.tar.gz linux-stable-1ad6c3b7ef132e1d8c5d606008069724625c8daf.tar.bz2 linux-stable-1ad6c3b7ef132e1d8c5d606008069724625c8daf.zip | |
hwmon: introduce hwmon_sanitize_name()
More and more drivers will check for bad characters in the hwmon name
and all are using the same code snippet. Consolidate that code by adding
a new hwmon_sanitize_name() function.
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20220405092452.4033674-2-michael@walle.cc
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/hwmon-kernel-api.rst | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/hwmon/hwmon-kernel-api.rst b/Documentation/hwmon/hwmon-kernel-api.rst index c41eb6108103..e2975d5caf34 100644 --- a/Documentation/hwmon/hwmon-kernel-api.rst +++ b/Documentation/hwmon/hwmon-kernel-api.rst @@ -50,6 +50,10 @@ register/unregister functions:: void devm_hwmon_device_unregister(struct device *dev); + char *hwmon_sanitize_name(const char *name); + + char *devm_hwmon_sanitize_name(struct device *dev, const char *name); + hwmon_device_register_with_groups registers a hardware monitoring device. The first parameter of this function is a pointer to the parent device. The name parameter is a pointer to the hwmon device name. The registration @@ -95,6 +99,18 @@ All supported hwmon device registration functions only accept valid device names. Device names including invalid characters (whitespace, '*', or '-') will be rejected. The 'name' parameter is mandatory. +If the driver doesn't use a static device name (for example it uses +dev_name()), and therefore cannot make sure the name only contains valid +characters, hwmon_sanitize_name can be used. This convenience function +will duplicate the string and replace any invalid characters with an +underscore. It will allocate memory for the new string and it is the +responsibility of the caller to release the memory when the device is +removed. + +devm_hwmon_sanitize_name is the resource managed version of +hwmon_sanitize_name; the memory will be freed automatically on device +removal. + Using devm_hwmon_device_register_with_info() -------------------------------------------- |