linux-kernel - [RFC][PATCH v2 24/31] timers: pcmcia: Use del_timer

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Date:   Thu, 27 Oct 2022 11:05:49 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Stephen Boyd <sboyd@...nel.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Dominik Brodowski <linux@...inikbrodowski.net>,
        Minghao Chi <chi.minghao@....com.cn>,
        Tony Lindgren <tony@...mide.com>,
        Arnd Bergmann <arnd@...db.de>,
        Cai Huoqing <cai.huoqing@...ux.dev>,
        "Paul E. McKenney" <paulmck@...nel.org>
Subject: [RFC][PATCH v2 24/31] timers: pcmcia: Use del_timer_shutdown() before freeing timer

From: "Steven Rostedt (Google)" <rostedt@...dmis.org>

Before a timer is freed, del_timer_shutdown() must be called.

Link: https://lore.kernel.org/all/20220407161745.7d6754b3@gandalf.local.home/

Cc: Dominik Brodowski <linux@...inikbrodowski.net>
Cc: Minghao Chi <chi.minghao@....com.cn>
Cc: Tony Lindgren <tony@...mide.com>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: "Souptick Joarder
Cc: Cai Huoqing <cai.huoqing@...ux.dev>
Cc: "Paul E. McKenney" <paulmck@...nel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>
---
 drivers/pcmcia/bcm63xx_pcmcia.c | 2 +-
 drivers/pcmcia/electra_cf.c     | 2 +-
 drivers/pcmcia/omap_cf.c        | 2 +-
 drivers/pcmcia/pd6729.c         | 4 ++--
 drivers/pcmcia/yenta_socket.c   | 4 ++--
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/pcmcia/bcm63xx_pcmcia.c b/drivers/pcmcia/bcm63xx_pcmcia.c
index bb06311d0b5f..1e96fa905bb0 100644
--- a/drivers/pcmcia/bcm63xx_pcmcia.c
+++ b/drivers/pcmcia/bcm63xx_pcmcia.c
@@ -443,7 +443,7 @@ static int bcm63xx_drv_pcmcia_remove(struct platform_device *pdev)
 	struct resource *res;
 
 	skt = platform_get_drvdata(pdev);
-	del_timer_sync(&skt->timer);
+	del_timer_shutdown(&skt->timer);
 	iounmap(skt->base);
 	iounmap(skt->io_base);
 	res = skt->reg_res;
diff --git a/drivers/pcmcia/electra_cf.c b/drivers/pcmcia/electra_cf.c
index 40a5cffe24a4..3c9a77a4c5d5 100644
--- a/drivers/pcmcia/electra_cf.c
+++ b/drivers/pcmcia/electra_cf.c
@@ -317,7 +317,7 @@ static int electra_cf_remove(struct platform_device *ofdev)
 	cf->active = 0;
 	pcmcia_unregister_socket(&cf->socket);
 	free_irq(cf->irq, cf);
-	del_timer_sync(&cf->timer);
+	del_timer_shutdown(&cf->timer);
 
 	iounmap(cf->io_virt);
 	iounmap(cf->mem_base);
diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c
index d3f827d4224a..f4c0ea073f14 100644
--- a/drivers/pcmcia/omap_cf.c
+++ b/drivers/pcmcia/omap_cf.c
@@ -296,7 +296,7 @@ static int __exit omap_cf_remove(struct platform_device *pdev)
 
 	cf->active = 0;
 	pcmcia_unregister_socket(&cf->socket);
-	del_timer_sync(&cf->timer);
+	del_timer_shutdown(&cf->timer);
 	release_mem_region(cf->phys_cf, SZ_8K);
 	free_irq(cf->irq, cf);
 	kfree(cf);
diff --git a/drivers/pcmcia/pd6729.c b/drivers/pcmcia/pd6729.c
index f0af9985ca09..539aeca0501c 100644
--- a/drivers/pcmcia/pd6729.c
+++ b/drivers/pcmcia/pd6729.c
@@ -727,7 +727,7 @@ static int pd6729_pci_probe(struct pci_dev *dev,
 	if (irq_mode == 1)
 		free_irq(dev->irq, socket);
 	else
-		del_timer_sync(&socket->poll_timer);
+		del_timer_shutdown(&socket->poll_timer);
 err_out_free_res:
 	pci_release_regions(dev);
 err_out_disable:
@@ -754,7 +754,7 @@ static void pd6729_pci_remove(struct pci_dev *dev)
 	if (irq_mode == 1)
 		free_irq(dev->irq, socket);
 	else
-		del_timer_sync(&socket->poll_timer);
+		del_timer_shutdown(&socket->poll_timer);
 	pci_release_regions(dev);
 	pci_disable_device(dev);
 
diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c
index 3966a6ceb1ac..8bceaf30d094 100644
--- a/drivers/pcmcia/yenta_socket.c
+++ b/drivers/pcmcia/yenta_socket.c
@@ -814,7 +814,7 @@ static void yenta_close(struct pci_dev *dev)
 	if (sock->cb_irq)
 		free_irq(sock->cb_irq, sock);
 	else
-		del_timer_sync(&sock->poll_timer);
+		del_timer_shutdown(&sock->poll_timer);
 
 	iounmap(sock->base);
 	yenta_free_resources(sock);
@@ -1285,7 +1285,7 @@ static int yenta_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	if (socket->cb_irq)
 		free_irq(socket->cb_irq, socket);
 	else
-		del_timer_sync(&socket->poll_timer);
+		del_timer_shutdown(&socket->poll_timer);
  unmap:
 	iounmap(socket->base);
 	yenta_free_resources(socket);
-- 
2.35.1