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qcacmn: Add validation code for wmi handler in dfs module

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Add validation code for get_wmi_unified_hdl_from_psoc() return
to avoid null pointer access.

Change-Id: I05a8c135df5197356c77df4997d978c0209b0dfd
CRs-Fixed: 2317012
This commit is contained in:
Arif Hussain 2018-09-19 11:28:32 -07:00 • committed by nshrivas
commit d5a4e64886
1 changed files with 17 additions and 2 deletions
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19
target_if/dfs/src/target_if_dfs.c
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@ -173,8 +173,15 @@ static QDF_STATUS target_if_reg_phyerr_events_dfs2(
struct wlan_objmgr_psoc *psoc)
{
int ret;
wmi_unified_t wmi_handle;
ret = wmi_unified_register_event(get_wmi_unified_hdl_from_psoc(psoc),
wmi_handle = get_wmi_unified_hdl_from_psoc(psoc);
if (!wmi_handle) {
target_if_err("null wmi_handle");
return QDF_STATUS_E_INVAL;
}
ret = wmi_unified_register_event(wmi_handle,
wmi_dfs_radar_event_id,
target_if_radar_event_handler);
if (ret) {
@ -194,7 +201,15 @@ static QDF_STATUS target_if_reg_phyerr_events_dfs2(
static bool target_if_dfs_offload(struct wlan_objmgr_psoc *psoc)
{
return wmi_service_enabled(get_wmi_unified_hdl_from_psoc(psoc),
wmi_unified_t wmi_handle;
wmi_handle = get_wmi_unified_hdl_from_psoc(psoc);
if (!wmi_handle) {
target_if_err("null wmi_handle");
return false;
}
return wmi_service_enabled(wmi_handle,
wmi_service_dfs_phyerr_offload);
}