| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.14 17/83] [SCSI] mpt2sas: Dont disable device twice at suspend. | Date | Sun, 11 May 2014 21:19:18 +0200 |
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3.14-stable review patch. If anyone has any objections, please let me know.
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From: Tyler Stachecki <tstache1@binghamton.edu>
commit af61e27c3f77c7623b5335590ae24b6a5c323e22 upstream.
On suspend, _scsih_suspend calls mpt2sas_base_free_resources, which in turn calls pci_disable_device if the device is enabled prior to suspending. However, _scsih_suspend also calls pci_disable_device itself.
Thus, in the event that the device is enabled prior to suspending, pci_disable_device will be called twice. This patch removes the duplicate call to pci_disable_device in _scsi_suspend as it is both unnecessary and results in a kernel oops.
Signed-off-by: Tyler Stachecki <tstache1@binghamton.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 1 - 1 file changed, 1 deletion(-)
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -8293,7 +8293,6 @@ _scsih_suspend(struct pci_dev *pdev, pm_ mpt2sas_base_free_resources(ioc); pci_save_state(pdev); - pci_disable_device(pdev); pci_set_power_state(pdev, device_state); return 0; }
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