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qcacld-3.0: During WiFi turn on get hdd_ctx after driver load

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Currently while turning on WiFi, driver is getting hdd_ctx first and
then waiting for driver load to complete. This may lead to use after
free access if there is a probe fail during the driver load.

To avoid this, get hdd_ctx after driver load is complete.

Change-Id: I90132a3cf8eb8047d0854f781dbe968bccef94cf
CRs-Fixed: 2839442
This commit is contained in:
Bapiraju Alla 2020-12-21 23:49:41 +05:30 • committed by Gerrit - the friendly Code Review server
commit 17e749ce8b
1 changed files with 2 additions and 1 deletions
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3
core/hdd/src/wlan_hdd_main.c
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@ -16011,7 +16011,7 @@ static ssize_t wlan_hdd_state_ctrl_param_write(struct file *filp,
static const char wlan_on_str[] = "ON";
int ret;
unsigned long rc;
struct hdd_context *hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD);
struct hdd_context *hdd_ctx;
if (copy_from_user(buf, user_buf, 3)) {
pr_err("Failed to read buffer\n");
@ -16046,6 +16046,7 @@ static ssize_t wlan_hdd_state_ctrl_param_write(struct file *filp,
* Flush idle shutdown work for cases to synchronize the wifi on
* during the idle shutdown.
*/
hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD);
if (hdd_ctx)
hdd_psoc_idle_timer_stop(hdd_ctx);