From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 4 Apr 2024 06:43:21 +0000 (+0200)
Subject: drop queue-6.1/gpio-cdev-sanitize-the-label-before-requesting-the-interrupt.patch
X-Git-Tag: v6.6.25~3
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=728554528e96861a577d7cd2feeb94b4a94b217e;p=thirdparty%2Fkernel%2Fstable-queue.git

drop queue-6.1/gpio-cdev-sanitize-the-label-before-requesting-the-interrupt.patch
---

diff --git a/queue-6.1/gpio-cdev-sanitize-the-label-before-requesting-the-interrupt.patch b/queue-6.1/gpio-cdev-sanitize-the-label-before-requesting-the-interrupt.patch
deleted file mode 100644
index 73c1a6cdbce..00000000000
--- a/queue-6.1/gpio-cdev-sanitize-the-label-before-requesting-the-interrupt.patch
+++ /dev/null
@@ -1,126 +0,0 @@
-From b34490879baa847d16fc529c8ea6e6d34f004b38 Mon Sep 17 00:00:00 2001
-From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
-Date: Mon, 25 Mar 2024 10:02:42 +0100
-Subject: gpio: cdev: sanitize the label before requesting the interrupt
-
-From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
-
-commit b34490879baa847d16fc529c8ea6e6d34f004b38 upstream.
-
-When an interrupt is requested, a procfs directory is created under
-"/proc/irq/<irqnum>/<label>" where <label> is the string passed to one of
-the request_irq() variants.
-
-What follows is that the string must not contain the "/" character or
-the procfs mkdir operation will fail. We don't have such constraints for
-GPIO consumer labels which are used verbatim as interrupt labels for
-GPIO irqs. We must therefore sanitize the consumer string before
-requesting the interrupt.
-
-Let's replace all "/" with ":".
-
-Cc: stable@vger.kernel.org
-Reported-by: Stefan Wahren <wahrenst@gmx.net>
-Closes: https://lore.kernel.org/linux-gpio/39fe95cb-aa83-4b8b-8cab-63947a726754@gmx.net/
-Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
-Reviewed-by: Kent Gibson <warthog618@gmail.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/gpio/gpiolib-cdev.c |   38 ++++++++++++++++++++++++++++++++------
- 1 file changed, 32 insertions(+), 6 deletions(-)
-
---- a/drivers/gpio/gpiolib-cdev.c
-+++ b/drivers/gpio/gpiolib-cdev.c
-@@ -999,10 +999,20 @@ static u32 gpio_v2_line_config_debounce_
- 	return 0;
- }
- 
-+static inline char *make_irq_label(const char *orig)
-+{
-+	return kstrdup_and_replace(orig, '/', ':', GFP_KERNEL);
-+}
-+
-+static inline void free_irq_label(const char *label)
-+{
-+	kfree(label);
-+}
-+
- static void edge_detector_stop(struct line *line)
- {
- 	if (line->irq) {
--		free_irq(line->irq, line);
-+		free_irq_label(free_irq(line->irq, line));
- 		line->irq = 0;
- 	}
- 
-@@ -1027,6 +1037,7 @@ static int edge_detector_setup(struct li
- 	unsigned long irqflags = 0;
- 	u64 eflags;
- 	int irq, ret;
-+	char *label;
- 
- 	eflags = edflags & GPIO_V2_LINE_EDGE_FLAGS;
- 	if (eflags && !kfifo_initialized(&line->req->events)) {
-@@ -1063,11 +1074,17 @@ static int edge_detector_setup(struct li
- 			IRQF_TRIGGER_RISING : IRQF_TRIGGER_FALLING;
- 	irqflags |= IRQF_ONESHOT;
- 
-+	label = make_irq_label(line->req->label);
-+	if (!label)
-+		return -ENOMEM;
-+
- 	/* Request a thread to read the events */
- 	ret = request_threaded_irq(irq, edge_irq_handler, edge_irq_thread,
--				   irqflags, line->req->label, line);
--	if (ret)
-+				   irqflags, label, line);
-+	if (ret) {
-+		free_irq_label(label);
- 		return ret;
-+	}
- 
- 	line->irq = irq;
- 	return 0;
-@@ -1910,7 +1927,7 @@ static ssize_t lineevent_read(struct fil
- static void lineevent_free(struct lineevent_state *le)
- {
- 	if (le->irq)
--		free_irq(le->irq, le);
-+		free_irq_label(free_irq(le->irq, le));
- 	if (le->desc)
- 		gpiod_free(le->desc);
- 	kfree(le->label);
-@@ -2058,6 +2075,7 @@ static int lineevent_create(struct gpio_
- 	int fd;
- 	int ret;
- 	int irq, irqflags = 0;
-+	char *label;
- 
- 	if (copy_from_user(&eventreq, ip, sizeof(eventreq)))
- 		return -EFAULT;
-@@ -2138,15 +2156,23 @@ static int lineevent_create(struct gpio_
- 	INIT_KFIFO(le->events);
- 	init_waitqueue_head(&le->wait);
- 
-+	label = make_irq_label(le->label);
-+	if (!label) {
-+		ret = -ENOMEM;
-+		goto out_free_le;
-+	}
-+
- 	/* Request a thread to read the events */
- 	ret = request_threaded_irq(irq,
- 				   lineevent_irq_handler,
- 				   lineevent_irq_thread,
- 				   irqflags,
--				   le->label,
-+				   label,
- 				   le);
--	if (ret)
-+	if (ret) {
-+		free_irq_label(label);
- 		goto out_free_le;
-+	}
- 
- 	le->irq = irq;
- 
diff --git a/queue-6.1/series b/queue-6.1/series
index c9450e4cd77..05f1a0e8f46 100644
--- a/queue-6.1/series
+++ b/queue-6.1/series
@@ -23,4 +23,3 @@ inet-inet_defrag-prevent-sk-release-while-still-in-u.patch
 dm-integrity-fix-out-of-range-warning.patch
 x86-cpufeatures-add-new-word-for-scattered-features.patch
 perf-x86-amd-lbr-use-freeze-based-on-availability.patch
-gpio-cdev-sanitize-the-label-before-requesting-the-interrupt.patch