From: Matt Chen <matt.chen@xxxxxxxxx>
Fix this issue if it is not supported by the firmware.
Fixes: 00f481bd895a ("iwlwifi: mvm: add ctdp operations to debugfs")
Signed-off-by: Matt Chen <matt.chen@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index 0b5cae54b86b..ceb486610a56 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -82,6 +82,9 @@ static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file,
char buf[16];
int pos, budget;
+ if (!iwl_mvm_is_ctdp_supported(mvm))
+ return -EOPNOTSUPP;
+
if (!iwl_mvm_firmware_running(mvm) ||
mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
return -EIO;
@@ -103,6 +106,9 @@ static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
{
int ret;
+ if (!iwl_mvm_is_ctdp_supported(mvm))
+ return -EOPNOTSUPP;
+
if (!iwl_mvm_firmware_running(mvm) ||
mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
return -EIO;
--
2.13.2
