Commit Graph

6 Commits

Author SHA1 Message Date
Greg Kroah-Hartman b8ae08db7a Update extcon next for v6.14
Detailed description for this pull request:
 - Fix null pointer check of memory allocation on extcon-rtk-type-c.c.
 - Add EXTCON subsystem documentation including the detailed description/example.
 - Drop unneeded init of struct i2c_device_id:driver_data on extcon-fsa9480/pth5150.c.
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Merge tag 'extcon-next-for-6.14' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next

Pull extcon updates from Chanwoo:

Update extcon next for v6.14

Detailed description for this pull request:
- Fix null pointer check of memory allocation on extcon-rtk-type-c.c.
- Add EXTCON subsystem documentation including the detailed description/example.
- Drop unneeded init of struct i2c_device_id:driver_data on extcon-fsa9480/pth5150.c.

* tag 'extcon-next-for-6.14' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon:
  extcon: Drop explicit initialization of struct i2c_device_id::driver_data to 0
  Documentation: extcon: add documentation for Extcon subsystem
  extcon: realtek: fix NULL deref check in extcon_rtk_type_c_probe
2025-01-12 13:44:27 +01:00
Charles Han 91329cb0a8 extcon: realtek: fix NULL deref check in extcon_rtk_type_c_probe
In extcon_rtk_type_c_probe() devm_kzalloc() may return NULL but this
returned value is not checked.

Fixes: 8a590d7371 ("extcon: add Realtek DHC RTD SoC Type-C driver")
Link: https://lore.kernel.org/lkml/20241025094650.253599-1-hanchunchao@inspur.com/
Signed-off-by: Charles Han <hanchunchao@inspur.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2024-12-08 21:59:39 +09:00
Linus Torvalds e70140ba0d Get rid of 'remove_new' relic from platform driver struct
The continual trickle of small conversion patches is grating on me, and
is really not helping.  Just get rid of the 'remove_new' member
function, which is just an alias for the plain 'remove', and had a
comment to that effect:

  /*
   * .remove_new() is a relic from a prototype conversion of .remove().
   * New drivers are supposed to implement .remove(). Once all drivers are
   * converted to not use .remove_new any more, it will be dropped.
   */

This was just a tree-wide 'sed' script that replaced '.remove_new' with
'.remove', with some care taken to turn a subsequent tab into two tabs
to make things line up.

I did do some minimal manual whitespace adjustment for places that used
spaces to line things up.

Then I just removed the old (sic) .remove_new member function, and this
is the end result.  No more unnecessary conversion noise.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-01 15:12:43 -08:00
Andy Shevchenko 986c51b959 extcon: realtek: Remove unused of_gpio.h
of_gpio.h is deprecated and subject to remove.
The driver doesn't use it, simply remove the unused header.

Link: https://lore.kernel.org/lkml/20240304174913.1198974-1-andriy.shevchenko@linux.intel.com/
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2024-05-09 01:03:38 +09:00
Stanley Chang b3edc3463d extcon: realtek: add the error handler for nvmem_cell_read
There are following smatch warning:
drivers/extcon/extcon-rtk-type-c.c:905 __updated_type_c_parameter_by_efuse()
error: 'buf' dereferencing possible ERR_PTR()

The nvmem_cell_read may fail to read. So, driver must handle failure cases.

Link: https://lore.kernel.org/all/20231016053510.28881-1-stanley_chang@realtek.com/

Fixes: 8a590d7371 ("extcon: add Realtek DHC RTD SoC Type-C driver")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/a469dd51-f5d5-4e8f-ba36-6c7cea046fb8@moroto.mountain/
Signed-off-by: Stanley Chang <stanley_chang@realtek.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2023-10-17 17:38:57 +09:00
Stanley Chang 8a590d7371 extcon: add Realtek DHC RTD SoC Type-C driver
This patch adds the extcon driver for Realtek DHC (digital home center)
RTD SoCs type-c module. This can be used to detect whether the port is
configured as a downstream or upstream facing port. And notify the status
of extcon to listeners.

Link: https://lore.kernel.org/lkml/20230904051253.23208-2-stanley_chang@realtek.com/
Signed-off-by: Stanley Chang <stanley_chang@realtek.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2023-10-06 11:25:11 +09:00