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| author | Kishon Vijay Abraham I <kishon@ti.com> | 2020-02-24 15:23:37 +0530 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-02-24 10:15:33 +0000 |
| commit | 07301c982643a432212840a4b648b5d3f5a061fa (patch) | |
| tree | 0698386fe101be66ecc5b8ea05ca37945d4604f5 /include/linux/pci-epf.h | |
| parent | 04e046ca57ebed3943422dee10eec9e73aec081e (diff) | |
PCI: endpoint: Protect concurrent access to pci_epf_ops with mutex
Protect concurrent access to pci_epf_ops with a mutex.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Diffstat (limited to 'include/linux/pci-epf.h')
| -rw-r--r-- | include/linux/pci-epf.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/pci-epf.h b/include/linux/pci-epf.h index 4993f7f6439b..bcdf4f07bde7 100644 --- a/include/linux/pci-epf.h +++ b/include/linux/pci-epf.h @@ -110,6 +110,7 @@ struct pci_epf_bar { * @driver: the EPF driver to which this EPF device is bound * @list: to add pci_epf as a list of PCI endpoint functions to pci_epc * @nb: notifier block to notify EPF of any EPC events (like linkup) + * @lock: mutex to protect pci_epf_ops */ struct pci_epf { struct device dev; @@ -124,6 +125,8 @@ struct pci_epf { struct pci_epf_driver *driver; struct list_head list; struct notifier_block nb; + /* mutex to protect against concurrent access of pci_epf_ops */ + struct mutex lock; }; #define to_pci_epf(epf_dev) container_of((epf_dev), struct pci_epf, dev) |