diff options
| author |   Gustavo Pimentel <gustavo.pimentel@synopsys.com> | 2018-07-19 10:32:22 +0200 |
|---|---|---|
| committer |   Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2018-07-19 11:47:25 +0100 |
| commit | 15c972dfb3954569e7d17ebadf1b10d0a0c3baa3 (patch) | |
| tree | c6b5c1673a37f7ce165ce11ad424b50db9708a2d /drivers/pci/endpoint | |
| parent | tools: PCI: Add MSI-X support (diff) | |
| download | linux-dev-15c972dfb3954569e7d17ebadf1b10d0a0c3baa3.tar.xz linux-dev-15c972dfb3954569e7d17ebadf1b10d0a0c3baa3.zip | |
PCI: endpoint: Add MSI set maximum restriction
Add pci_epc_set_msi() maximum 32 interrupts validation.
Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/pci/endpoint')
| -rw-r--r-- | drivers/pci/endpoint/pci-epc-core.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c index c72e656e7e29..094dcc3203b8 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) |