aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/scsi/mpt3sas/mpt3sas_base.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/mpt3sas/mpt3sas_base.c')
-rw-r--r--drivers/scsi/mpt3sas/mpt3sas_base.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index bec31633be3b..f5d589e839b3 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -108,9 +108,12 @@ _scsih_set_fwfault_debug(const char *val, struct kernel_param *kp)
if (ret)
return ret;
+ /* global ioc spinlock to protect controller list on list operations */
pr_info("setting fwfault_debug(%d)\n", mpt3sas_fwfault_debug);
+ spin_lock(&gioc_lock);
list_for_each_entry(ioc, &mpt3sas_ioc_list, list)
ioc->fwfault_debug = mpt3sas_fwfault_debug;
+ spin_unlock(&gioc_lock);
return 0;
}
module_param_call(mpt3sas_fwfault_debug, _scsih_set_fwfault_debug,
@@ -5136,6 +5139,8 @@ mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc)
dexitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
__func__));
+ /* synchronizing freeing resource with pci_access_mutex lock */
+ mutex_lock(&ioc->pci_access_mutex);
if (ioc->chip_phys && ioc->chip) {
_base_mask_interrupts(ioc);
ioc->shost_recovery = 1;
@@ -5144,6 +5149,7 @@ mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc)
}
mpt3sas_base_unmap_resources(ioc);
+ mutex_unlock(&ioc->pci_access_mutex);
return;
}

Privacy Policy