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Message-Id: <20240213093108.13922-1-brgl@bgdev.pl>
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
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