devm_kasprintf() can return a NULL pointer on failure but this returned
value is not checked. Fix this lack and check the returned value.
Found by code review.
Cc: stable@vger.kernel.org
Fixes: a0f160ffcb83 ("pinctrl: add pinctrl/GPIO driver for Apple SoCs")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Reviewed-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/20240905020917.356534-1-make24@iscas.ac.cn
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Do not imply that some of the generic headers may be always included. Instead, include explicitly what we are direct user of. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The irqchip ops are called with a raw spinlock held, so the subsequent
regmap usage cannot use a plain spinlock.
spi-hid-apple-of spi0.0: spihid_apple_of_probe:74
=============================
[ BUG: Invalid wait context ]
5.18.0-asahi-00176-g0fa3ab03bdea #1337 Not tainted
-----------------------------
kworker/u20:3/86 is trying to lock:
ffff8000166b5018 (pinctrl_apple_gpio:462:(®map_config)->lock){....}-{3:3}, at: regmap_lock_spinlock+0x18/0x30
other info that might help us debug this:
context-{5:5}
7 locks held by kworker/u20:3/86:
#0: ffff800017725d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x1c8/0x670
#1: ffff80001e33bdd0 (deferred_probe_work){+.+.}-{0:0}, at: process_one_work+0x1c8/0x670
#2: ffff800017d629a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x30/0x17c
#3: ffff80002414e618 (&ctlr->add_lock){+.+.}-{4:4}, at: spi_add_device+0x40/0x80
#4: ffff800024116990 (&dev->mutex){....}-{4:4}, at: __device_attach+0x30/0x17c
#5: ffff800022d4be58 (request_class){+.+.}-{4:4}, at: __setup_irq+0xa8/0x720
#6: ffff800022d4bcc8 (lock_class){....}-{2:2}, at: __setup_irq+0xcc/0x720
Fixes: a0f160ffcb83 ("pinctrl: add pinctrl/GPIO driver for Apple SoCs")
Signed-off-by: Hector Martin <marcan@marcan.st>
Link: https://lore.kernel.org/r/20220524142206.18833-1-marcan@marcan.st
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We need MODULE_DEVICE_TABLE for module autoloading to work. Signed-off-by: Hector Martin <marcan@marcan.st> Link: https://lore.kernel.org/r/20220502092335.30670-1-marcan@marcan.st Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Prevent gpiolib from messing with the irqchip by advertising the irq_chip structure as immutable, making it const, and adding the various calls that gpiolib relies upon. Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220419141846.598305-7-maz@kernel.org
Zero-length and one-element arrays are deprecated, see Documentation/process/deprecated.rst Flexible-array members should be used instead. Generated by: scripts/coccinelle/misc/flexible_array.cocci CC: Joey Gouly <joey.gouly@arm.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: kernel test robot <lkp@intel.com> Signed-off-by: Julia Lawall <julia.lawall@inria.fr> Link: https://lore.kernel.org/r/alpine.DEB.2.22.394.2111271859250.2864@hadrien Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
If of_property_count_u32_elems returned 0, return -EINVAL to indicate
a failure. Previously this would return 0.
Fixes: a0f160ffcb83 ("pinctrl: add pinctrl/GPIO driver for Apple SoCs")
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211121165642.27883-12-joey.gouly@arm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This expresses the intention clearer. Signed-off-by: Joey Gouly <joey.gouly@arm.com> Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20211121165642.27883-11-joey.gouly@arm.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The gpio core code sets of_node, so no need to do it here. Signed-off-by: Joey Gouly <joey.gouly@arm.com> Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20211121165642.27883-10-joey.gouly@arm.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>