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| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2016-07-12 17:43:25 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-07-15 15:08:30 -0400 |
| commit | 83c3d3400c87d6d943bf97fce4b30f4fe6870253 (patch) | |
| tree | 8bbb0107b5b3ca730df8d09546bbad85ad312bbf | |
| parent | ef8d1d51aa5ebe4b17b5e837d520df1e398b7adb (diff) | |
| download | linux-83c3d3400c87d6d943bf97fce4b30f4fe6870253.tar.bz2 | |
mpt3sas: Fix panic when aer correct error occurred
The _scsih_pci_mmio_enabled called if scsih_pci_error_detected returns
PCI_ERS_RESULT_CAN_RECOVER, at this point, read/write to the device
still works, no need to reset slot.
Or the mpt3sas_base_map_resources in scsih_pci_slot_reset will fail,
and iounamp ioc->chip, then we will meet issue when read ioc->chip
in mpt3sas_base_get_iocstate from _base_fault_reset_work.
Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: Chaitra P B <chaitra.basappa@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Chaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_scsih.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index cd6be7be0c5b..cd91a684c945 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -9035,8 +9035,11 @@ scsih_pci_mmio_enabled(struct pci_dev *pdev) /* TODO - dump whatever for debugging purposes */ - /* Request a slot reset. */ - return PCI_ERS_RESULT_NEED_RESET; + /* This called only if scsih_pci_error_detected returns + * PCI_ERS_RESULT_CAN_RECOVER. Read/write to the device still + * works, no need to reset slot. + */ + return PCI_ERS_RESULT_RECOVERED; } /* |