diff options
Diffstat (limited to 'drivers/pci/pcie')
| -rw-r--r-- | drivers/pci/pcie/aspm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index e61b82e611c2..eee09f756ec9 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -770,6 +770,8 @@ static int pcie_aspm_set_policy(const char *val, struct kernel_param *kp) int i; struct pcie_link_state *link; + if (aspm_disabled) + return -EPERM; for (i = 0; i < ARRAY_SIZE(policy_str); i++) if (!strncmp(val, policy_str[i], strlen(policy_str[i]))) break; @@ -824,6 +826,8 @@ static ssize_t link_state_store(struct device *dev, struct pcie_link_state *link, *root = pdev->link_state->root; u32 val = buf[0] - '0', state = 0; + if (aspm_disabled) + return -EPERM; if (n < 1 || val > 3) return -EINVAL; |