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From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Linus Walleij <linus.walleij@linaro.org>,
Kent Gibson <warthog618@gmail.com>,
Alex Elder <elder@linaro.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
"Paul E . McKenney" <paulmck@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Wolfram Sang <wsa@the-dreams.de>
Cc: linux-gpio@vger.kernel.org,
linux-kernel@vger.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Subject: [PATCH 0/3] gpio: fix SRCU bugs
Date: Tue, 13 Feb 2024 10:31:05 +0100
Message-Id: <20240213093108.13922-1-brgl@bgdev.pl>
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| Series |
gpio: fix SRCU bugs
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From: Bartosz Golaszewski <bartosz.golaszewski@linaro.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(-)