linux-kernel - [PATCH v2 2/6] pinctrl: renesas: rzg2l: Release all the virq's in free callback

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241025114914.714597-3-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Fri, 25 Oct 2024 12:49:10 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>
Cc: linux-renesas-soc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH v2 2/6] pinctrl: renesas: rzg2l: Release all the virq's in free callback

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

The `free` callback in `struct irq_domain_ops` expects to free
nr_irqs interrupts starting from virq.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
v1->v2
- No change
---
 drivers/pinctrl/renesas/pinctrl-rzg2l.c | 39 ++++++++++++++-----------
 1 file changed, 22 insertions(+), 17 deletions(-)

diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
index 8ffb9430a134..1a09ccbfebad 100644
--- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
@@ -2477,25 +2477,30 @@ static void rzg2l_gpio_irq_restore(struct rzg2l_pinctrl *pctrl)
 static void rzg2l_gpio_irq_domain_free(struct irq_domain *domain, unsigned int virq,
 				       unsigned int nr_irqs)
 {
+	struct rzg2l_pinctrl *pctrl;
+	irq_hw_number_t hwirq;
+	struct gpio_chip *gc;
+	unsigned long flags;
 	struct irq_data *d;
+	unsigned int i, j;
 
-	d = irq_domain_get_irq_data(domain, virq);
-	if (d) {
-		struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
-		struct rzg2l_pinctrl *pctrl = container_of(gc, struct rzg2l_pinctrl, gpio_chip);
-		irq_hw_number_t hwirq = irqd_to_hwirq(d);
-		unsigned long flags;
-		unsigned int i;
-
-		for (i = 0; i < RZG2L_TINT_MAX_INTERRUPT; i++) {
-			if (pctrl->hwirq[i] == hwirq) {
-				rzg2l_gpio_irq_endisable(pctrl, hwirq, false);
-				rzg2l_gpio_free(gc, hwirq);
-				spin_lock_irqsave(&pctrl->bitmap_lock, flags);
-				bitmap_release_region(pctrl->tint_slot, i, get_order(1));
-				spin_unlock_irqrestore(&pctrl->bitmap_lock, flags);
-				pctrl->hwirq[i] = 0;
-				break;
+	for (j = 0; j < nr_irqs; j++) {
+		d = irq_domain_get_irq_data(domain, virq + j);
+		if (d) {
+			gc = irq_data_get_irq_chip_data(d);
+			pctrl = container_of(gc, struct rzg2l_pinctrl, gpio_chip);
+			hwirq = irqd_to_hwirq(d);
+
+			for (i = 0; i < RZG2L_TINT_MAX_INTERRUPT; i++) {
+				if (pctrl->hwirq[i] == hwirq) {
+					rzg2l_gpio_irq_endisable(pctrl, hwirq, false);
+					rzg2l_gpio_free(gc, hwirq);
+					spin_lock_irqsave(&pctrl->bitmap_lock, flags);
+					bitmap_release_region(pctrl->tint_slot, i, get_order(1));
+					spin_unlock_irqrestore(&pctrl->bitmap_lock, flags);
+					pctrl->hwirq[i] = 0;
+					break;
+				}
 			}
 		}
 	}
-- 
2.43.0