commit f6ccaf5f2576b2c8fafab070b59ce24e80b31f57
author c_manjee <c_manjee@qti.qualcomm.com> Tue Dec 08 11:52:11 2015 +0530
committer Satyanarayana Dash <sadash@codeaurora.org> Thu Dec 10 17:07:19 2015 +0530
tree 1411aa81dc128af9de71ce8abaa55313e9e0bb16
parent d07159162b59ed3d65db640f41fa3e2f00f30d9c

prima: Check the return status of sscanf for TDLSOFFCHANNEL

Currently in TDLSOFFCHANNEL ioctl, return value of sscanf is not checked.
Update code to check the return value of sscanf

Change-Id: If62a8dc7d2647cb5f70291d5628c78bcca2a6dff
CRs-Fixed: 856435

CORE/HDD/src/wlan_hdd_main.c

diff --git a/CORE/HDD/src/wlan_hdd_main.c b/CORE/HDD/src/wlan_hdd_main.c
index cfd03d2..7de86df 100755
--- a/CORE/HDD/src/wlan_hdd_main.c
+++ b/CORE/HDD/src/wlan_hdd_main.c
@@ -4418,7 +4418,14 @@
            int set_value;
            /* Move pointer to ahead of TDLSOFFCH*/
            value += 14;
-           sscanf(value, "%d", &set_value);
+           ret = sscanf(value, "%d", &set_value);
+           if (ret != 1) {
+              VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
+                     "Wrong value is given for hdd_set_tdls_offchannel");
+               ret = -EINVAL;
+               goto exit;
+           }
+
            VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO,
                      "%s: Tdls offchannel num: %d",
                      __func__, set_value);