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iwlwifi: mvm: fix a range check in debugfs code

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The &mvm->tof_data.range_req.ap[] array has IWL_MVM_TOF_MAX_APS elements
so the check should be >= instead of >.  Also the test can underflow so
I have changed "i" to unsigned.

Fixes: ce7929186a ('wlwifi: mvm: add basic Time of Flight (802.11mc FTM) support')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Dan Carpenter 2015-08-11 00:45:03 +03:00 committed by Emmanuel Grumbach
parent 3cd6e2f768
commit 5b9d47cdde
1 changed files with 3 additions and 3 deletions
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6
drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c
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@ -911,9 +911,9 @@ static ssize_t iwl_dbgfs_tof_range_request_write(struct ieee80211_vif *vif,
int size = sizeof(struct iwl_tof_range_req_ap_entry);
u16 burst_period;
u8 *mac = ap.bssid;
int i;
unsigned int i;
if (sscanf(data, "%d %hhd %hhx %hhx"
if (sscanf(data, "%u %hhd %hhx %hhx"
"%hhx:%hhx:%hhx:%hhx:%hhx:%hhx"
"%hhx %hhx %hx"
"%hhx %hhx %x"
@ -929,7 +929,7 @@ static ssize_t iwl_dbgfs_tof_range_request_write(struct ieee80211_vif *vif,
ret = -EINVAL;
goto out;
}
if (i > IWL_MVM_TOF_MAX_APS) {
if (i >= IWL_MVM_TOF_MAX_APS) {
IWL_ERR(mvm, "Invalid AP index %d\n", i);
ret = -EINVAL;
goto out;