From: Liad Kaufman <[email protected]> This makes sure that we're not trying to read/write any of the FW debug data collected during d0i3.
Signed-off-by: Liad Kaufman <[email protected]> Reviewed-by: Eliad Peller <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]> --- drivers/net/wireless/iwlwifi/mvm/debugfs.c | 1 + drivers/net/wireless/iwlwifi/mvm/mvm.h | 1 + drivers/net/wireless/iwlwifi/mvm/ops.c | 5 +++++ 3 files changed, 7 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c index a1b276c..f1b3405 100644 --- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c @@ -1390,6 +1390,7 @@ static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file, PRINT_MVM_REF(IWL_MVM_REF_TM_CMD); PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK); PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA); + PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT); return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h index b2100b4..c95297e 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h @@ -276,6 +276,7 @@ enum iwl_mvm_ref_type { IWL_MVM_REF_TM_CMD, IWL_MVM_REF_EXIT_WORK, IWL_MVM_REF_PROTECT_CSA, + IWL_MVM_REF_FW_DBG_COLLECT, /* update debugfs.c when changing this */ diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c index 239f033..b0583fc 100644 --- a/drivers/net/wireless/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/iwlwifi/mvm/ops.c @@ -818,9 +818,14 @@ static void iwl_mvm_fw_error_dump_wk(struct work_struct *work) struct iwl_mvm *mvm = container_of(work, struct iwl_mvm, fw_error_dump_wk); + if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT)) + return; + mutex_lock(&mvm->mutex); iwl_mvm_fw_error_dump(mvm); mutex_unlock(&mvm->mutex); + + iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT); } void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
