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Koen Kooi
ebbeb55561
Also add script used to generate patches and SRC_URI Signed-off-by: Koen Kooi <koen@dominion.thruhere.net> Signed-off-by: Denys Dmytriyenko <denys@ti.com>
54 lines
1.8 KiB
Diff
54 lines
1.8 KiB
Diff
From e039921254b3e40b6a3ace33bac45c20b197fd0e Mon Sep 17 00:00:00 2001
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From: Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com>
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Date: Mon, 9 Jan 2012 10:58:06 -0200
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Subject: [PATCH 52/90] jsm: Fixed EEH recovery error
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commit 26aa38cafae0dbef3b2fe75ea487c83313c36d45 upstream.
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There was an error on the jsm driver that would cause it to be unable to
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recover after a second error is detected.
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At the first error, the device recovers properly:
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[72521.485691] EEH: Detected PCI bus error on device 0003:02:00.0
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[72521.485695] EEH: This PCI device has failed 1 times in the last hour:
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...
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[72532.035693] ttyn3 at MMIO 0x0 (irq = 49) is a jsm
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[72532.105689] jsm: Port 3 added
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However, at the second error, it cascades until EEH disables the device:
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[72631.229549] Call Trace:
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...
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[72641.725687] jsm: Port 3 added
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[72641.725695] EEH: Detected PCI bus error on device 0003:02:00.0
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[72641.725698] EEH: This PCI device has failed 3 times in the last hour:
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It was caused because the PCI state was not being saved after the first
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restore. Therefore, at the second recovery the PCI state would not be
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restored.
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Signed-off-by: Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com>
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Signed-off-by: Breno Leitao <brenohl@br.ibm.com>
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Acked-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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drivers/tty/serial/jsm/jsm_driver.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c
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index 7c867a0..7545fe1 100644
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--- a/drivers/tty/serial/jsm/jsm_driver.c
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+++ b/drivers/tty/serial/jsm/jsm_driver.c
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@@ -251,6 +251,7 @@ static void jsm_io_resume(struct pci_dev *pdev)
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struct jsm_board *brd = pci_get_drvdata(pdev);
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pci_restore_state(pdev);
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+ pci_save_state(pdev);
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jsm_uart_port_init(brd);
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}
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--
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1.7.9.4
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