linux-kernel - [PATCH 0/3] gpio: fix SRCU bugs

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Date: Tue, 13 Feb 2024 10:31:05 +0100
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>,
	Kent Gibson <warthog618@...il.com>,
	Alex Elder <elder@...aro.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	"Paul E . McKenney" <paulmck@...nel.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Wolfram Sang <wsa@...-dreams.de>
Cc: linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 0/3] gpio: fix SRCU bugs

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

Here are three fixes to some bugs in recent SRCU changes. The first one fixes
an actual race condition. The other two just make lockdep happy.

Bartosz Golaszewski (3):
  gpio: take the SRCU read lock in gpiod_hog()
  gpio: cdev: use correct pointer accessors with SRCU
  gpio: use rcu_dereference_protected() to make lockdep happy

 drivers/gpio/gpiolib-cdev.c | 25 ++++++++++++-------------
 drivers/gpio/gpiolib.c      | 23 +++++++++++++++--------
 drivers/gpio/gpiolib.h      |  4 +++-
 3 files changed, 30 insertions(+), 22 deletions(-)

-- 
2.40.1