From a26d4e7b096d85eeea0ce08950744e2887cb46fa Mon Sep 17 00:00:00 2001 From: Luciano Coelho Date: Wed, 20 Aug 2014 10:21:07 +0300 Subject: [PATCH] iwlwifi: mvm: fail temp test enabling if the ucode is not loaded If the ucode is not loaded, don't allow the temperature test to be started, but allow it to be changed or stopped if already running. Signed-off-by: Luciano Coelho Reviewed-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/debugfs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c index d98ee109c5e9..85eb847c749d 100644 --- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c @@ -288,6 +288,9 @@ static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm, { int temperature; + if (!mvm->ucode_loaded && !mvm->temperature_test) + return -EIO; + if (kstrtoint(buf, 10, &temperature)) return -EINVAL; /* not a legal temperature */ -- 2.20.1