diff mbox

[07/21] iwlwifi: mvm: don't NUL-terminate low-latency debugfs file

Message ID 1442869141-31637-7-git-send-email-luca@coelho.fi (mailing list archive)
State Accepted
Delegated to: Johannes Berg
Headers show

Commit Message

Luca Coelho Sept. 21, 2015, 8:58 p.m. UTC 
From: Johannes Berg <johannes.berg@intel.com>

There's obviously no reason to write a NUL-terminating byte into
the debugfs file. Apparently nobody tried to use this from a tool
that doesn't strip NUL bytes though, so we never noticed. Fix it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
diff mbox

Patch

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c
index 383a316..334ae56 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c
@@ -1250,11 +1250,10 @@  static ssize_t iwl_dbgfs_low_latency_read(struct file *file,
 {
 	struct ieee80211_vif *vif = file->private_data;
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
-	char buf[3];
+	char buf[2];
 
 	buf[0] = mvmvif->low_latency ? '1' : '0';
 	buf[1] = '\n';
-	buf[2] = '\0';
 	return simple_read_from_buffer(user_buf, count, ppos, buf, sizeof(buf));
 }