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qcacld-3.0: Fix possible memory leak of tx_time_per_power_level

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It is possible tx_time_per_power_level is not freed
in last event, and it is reused in
__wma_unified_radio_tx_power_level_stats_event_handler,
the buffer size may be different for each event by
manually test.

Fix is to check if memory is freed before malloc, if
not null, free it before malloc.

Change-Id: I51064734cf97b9ff0ecbbaf27f38d5a223c91d3b
CRs-Fixed: 3057436
This commit is contained in:
Jingxiang Ge 2021-12-02 15:59:01 +08:00 • committed by Madan Koyyalamudi
commit 19edb11baa
1 changed files with 15 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

27
core/wma/src/wma_utils.c
View file

@ -1961,18 +1961,23 @@ static int wma_unified_radio_tx_power_level_stats_event_handler(void *handle,
return -EINVAL;
}
if (!rs_results->tx_time_per_power_level) {
rs_results->tx_time_per_power_level = qdf_mem_malloc(
sizeof(uint32_t) *
rs_results->total_num_tx_power_levels);
if (!rs_results->tx_time_per_power_level) {
/* In error case, atleast send the radio stats without
* tx_power_level stats */
rs_results->total_num_tx_power_levels = 0;
link_stats_results->nr_received++;
goto post_stats;
}
if (rs_results->tx_time_per_power_level) {
qdf_mem_free(rs_results->tx_time_per_power_level);
rs_results->tx_time_per_power_level = NULL;
}
rs_results->tx_time_per_power_level =
qdf_mem_malloc(sizeof(uint32_t) *
rs_results->total_num_tx_power_levels);
if (!rs_results->tx_time_per_power_level) {
/* In error case, atleast send the radio stats without
* tx_power_level stats
*/
rs_results->total_num_tx_power_levels = 0;
link_stats_results->nr_received++;
goto post_stats;
}
qdf_mem_copy(&rs_results->tx_time_per_power_level[
fixed_param->power_level_offset],
tx_power_level_values,