diff mbox series

[v11,12/12] PCI: endpoint: Add MSI set maximum restriction

Message ID 7d5a9708368226edd1d461dec4b719ea5bffdf6c.1531751641.git.gustavo.pimentel@synopsys.com
State Superseded
Delegated to: Lorenzo Pieralisi
Headers show
Series Add MSI-X support on pcitest tool | expand

Commit Message

Gustavo Pimentel July 16, 2018, 2:52 p.m. UTC 
Add pci_epc_set_msi() maximum 32 interrupts validation.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
---
Change v4->v5:
 - New patch file.
Change v5->v6:
 - Nothing changed, just to follow the patch set version.
Change v6->v7:
 - Nothing changed, just to follow the patch set version.
Change v7->v8:
 - Re-sending the patch series.
Change v8->v9:
 - Nothing changed, just to follow the patch set version.
Change v9->v10:
 - Nothing changed, just to follow the patch set version.
Change v10->v11:
 - Nothing changed, just to follow the patch set version.

 drivers/pci/endpoint/pci-epc-core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c
index c72e656..094dcc3 100644
--- a/drivers/pci/endpoint/pci-epc-core.c
+++ b/drivers/pci/endpoint/pci-epc-core.c
@@ -201,7 +201,8 @@  int pci_epc_set_msi(struct pci_epc *epc, u8 func_no, u8 interrupts)
 	u8 encode_int;
 	unsigned long flags;
 
-	if (IS_ERR_OR_NULL(epc) || func_no >= epc->max_functions)
+	if (IS_ERR_OR_NULL(epc) || func_no >= epc->max_functions ||
+	    interrupts > 32)
 		return -EINVAL;
 
 	if (!epc->ops->set_msi)