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From: Hugh Dickins <hugh@veritas.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Andrew Morton <akpm@osdl.org>,
	Dominik Brodowski <linux@dominikbrodowski.net>,
	Daniel Ritz <daniel.ritz@gmx.ch>,
	linux-kernel@vger.kernel.org
Subject: revert yenta free_irq on suspend
Date: Sat, 30 Jul 2005 20:10:33 +0100 (BST)	[thread overview]
Message-ID: <Pine.LNX.4.61.0507301952350.3319@goblin.wat.veritas.com> (raw)

Please revert the yenta free_irq on suspend patch (below)
which went into 2.6.13-rc4 after 2.6.13-rc3-git9.

Sorry Daniel, you may have a box on which resume doesn't work without
it, but on my laptop APM resume from RAM now fails to work because of
it - locks up solid.  The patch sounded rather fishy when it went in,
but I've done an unprejudiced bisection and this turns out to be the
culprit.  Perhaps it needs something more (I can try further patches),
but as it stands it's unsuitable for 2.6.13.

Do I recall a worry about shared interrupts?  I indeed have
PCI: Found IRQ 11 for device 0000:00:1f.1
PCI: Sharing IRQ 11 with 0000:02:00.0
PCI: Found IRQ 11 for device 0000:02:00.0
PCI: Sharing IRQ 11 with 0000:00:1f.1
PCI: Found IRQ 11 for device 0000:02:01.0
PCI: Sharing IRQ 11 with 0000:02:01.1
PCI: Found IRQ 11 for device 0000:02:01.1
PCI: Sharing IRQ 11 with 0000:02:01.0
on resume before that patch, and again now I've backed it out.

Thanks,
Hugh

From: Daniel Ritz <daniel.ritz@gmx.ch>

Resume doesn't seem to work without.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 drivers/pcmcia/yenta_socket.c |    9 +++++++++
 1 files changed, 9 insertions(+)

diff -puN drivers/pcmcia/yenta_socket.c~yenta-free_irq-on-suspend drivers/pcmcia/yenta_socket.c
--- devel/drivers/pcmcia/yenta_socket.c~yenta-free_irq-on-suspend	2005-07-28 01:05:52.000000000 -0700
+++ devel-akpm/drivers/pcmcia/yenta_socket.c	2005-07-28 01:05:52.000000000 -0700
@@ -1107,6 +1107,8 @@ static int yenta_dev_suspend (struct pci
 		pci_read_config_dword(dev, 17*4, &socket->saved_state[1]);
 		pci_disable_device(dev);
 
+		free_irq(dev->irq, socket);
+
 		/*
 		 * Some laptops (IBM T22) do not like us putting the Cardbus
 		 * bridge into D3.  At a guess, some other laptop will
@@ -1132,6 +1134,13 @@ static int yenta_dev_resume (struct pci_
 		pci_enable_device(dev);
 		pci_set_master(dev);
 
+		if (socket->cb_irq)
+			if (request_irq(socket->cb_irq, yenta_interrupt,
+			                SA_SHIRQ, "yenta", socket)) {
+				printk(KERN_WARNING "Yenta: request_irq() failed on resume!\n");
+				socket->cb_irq = 0;
+			}
+
 		if (socket->type && socket->type->restore_state)
 			socket->type->restore_state(socket);
 	}

             reply	other threads:[~2005-07-30 19:12 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-07-30 19:10 Hugh Dickins [this message]
2005-07-30 20:03 ` Russell King
2005-07-30 20:36   ` Linus Torvalds
2005-07-30 20:54     ` Russell King
2005-07-30 21:10       ` Linus Torvalds
2005-07-30 21:30         ` Russell King
2005-07-30 22:28         ` Rafael J. Wysocki
2005-07-31  4:49           ` Linus Torvalds
2005-08-01  9:06         ` Benjamin Herrenschmidt
2005-07-30 21:20       ` Rafael J. Wysocki
2005-07-30 20:34 ` Linus Torvalds
2005-07-31 13:29   ` Pavel Machek
2005-07-31 15:53     ` Linus Torvalds
2005-07-31 17:09       ` Linus Torvalds
2005-07-30 20:49 ` Rafael J. Wysocki
2005-07-30 21:08   ` Daniel Ritz
2005-07-30 21:32   ` Hugh Dickins
2005-07-30 22:00     ` Rafael J. Wysocki
2005-07-30 22:24       ` Hugh Dickins
2005-07-30 23:09         ` Rafael J. Wysocki
2005-07-31 20:15           ` Rafael J. Wysocki
2005-08-01 20:34             ` Hugh Dickins
2005-08-01 21:54               ` Rafael J. Wysocki
2005-07-31  5:03 Brown, Len
2005-07-31  5:31 ` Linus Torvalds
2005-07-31  9:49 ` Rafael J. Wysocki
2005-07-31 22:27 ` Dave Jones
2005-08-01  0:00   ` Andreas Steinmetz
2005-08-01  0:06     ` Dave Jones
2005-08-01  0:09       ` Andreas Steinmetz
2005-08-03  9:23   ` Pavel Machek
2005-08-01  8:51 ` Matthew Garrett
2005-07-31 20:34 ambx1
2005-07-31 21:20 ` Pavel Machek
2005-08-01  8:56   ` Benjamin Herrenschmidt
2005-07-31 22:55 ` Linus Torvalds
2005-07-31 23:05   ` Pavel Machek
2005-07-31 23:24     ` Linus Torvalds
2005-07-31 23:27       ` Pavel Machek
2005-07-31 23:44         ` Linus Torvalds
2005-07-31 23:59           ` Dave Airlie
2005-08-01  0:19             ` Linus Torvalds
2005-08-01  0:44               ` Dave Airlie
2005-08-01  1:07                 ` Linus Torvalds
2005-08-01  7:15                   ` Pavel Machek
2005-08-01  7:01               ` Sanjoy Mahajan
2005-08-01  7:25           ` Pavel Machek
2005-07-31 23:10   ` Dave Airlie
2005-08-01  1:59 ` Shaohua Li
2005-08-01  2:06   ` Andrew Morton
2005-08-01  2:22     ` Shaohua Li
2005-08-01  7:19     ` Pavel Machek
2005-08-01 21:38     ` Rafael J. Wysocki
2005-08-01  3:03 ambx1
2005-08-01  4:53 ` Linus Torvalds
2005-08-01  8:49 ` Benjamin Herrenschmidt
2005-08-02 10:56   ` Pavel Machek
2005-08-03 11:42     ` Benjamin Herrenschmidt

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