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| author | Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com> | 2012-01-09 13:58:06 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2012-01-24 21:55:36 +0100 |
| commit | 26aa38cafae0dbef3b2fe75ea487c83313c36d45 (patch) | |
| tree | 806c989d84ef876533a29083f84d09a4e6dd1050 | |
| parent | Updated TTY MAINTAINERS info (diff) | |
| download | linux-26aa38cafae0dbef3b2fe75ea487c83313c36d45.tar.xz linux-26aa38cafae0dbef3b2fe75ea487c83313c36d45.zip | |
jsm: Fixed EEH recovery error
There was an error on the jsm driver that would cause it to be unable to
recover after a second error is detected.
At the first error, the device recovers properly:
[72521.485691] EEH: Detected PCI bus error on device 0003:02:00.0
[72521.485695] EEH: This PCI device has failed 1 times in the last hour:
...
[72532.035693] ttyn3 at MMIO 0x0 (irq = 49) is a jsm
[72532.105689] jsm: Port 3 added
However, at the second error, it cascades until EEH disables the device:
[72631.229549] Call Trace:
...
[72641.725687] jsm: Port 3 added
[72641.725695] EEH: Detected PCI bus error on device 0003:02:00.0
[72641.725698] EEH: This PCI device has failed 3 times in the last hour:
It was caused because the PCI state was not being saved after the first
restore. Therefore, at the second recovery the PCI state would not be
restored.
Signed-off-by: Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com>
Signed-off-by: Breno Leitao <brenohl@br.ibm.com>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/tty/serial/jsm/jsm_driver.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c index 7c867a046c97..7545fe1b9925 100644 --- a/drivers/tty/serial/jsm/jsm_driver.c +++ b/drivers/tty/serial/jsm/jsm_driver.c @@ -251,6 +251,7 @@ static void jsm_io_resume(struct pci_dev *pdev) struct jsm_board *brd = pci_get_drvdata(pdev); pci_restore_state(pdev); + pci_save_state(pdev); jsm_uart_port_init(brd); } |