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qcacld-3.0: SSR protection for linux/crda reg_notifier api

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qcacld-2.0 to qcacld-3.0 propagation

if SSR trigger in middle of execution of linux_reg_notifier
/crda_reg_notifier, driver may access uninitialized data.
Hence Driver need to protect these function from SSR.

Change-Id: I9bdc6851a44fecc8353e94b38eb1dd4f63e58604
CRs-Fixed: 798672
This commit is contained in:
Mukul Sharma 2015-10-30 22:23:43 +05:30 • committed by Prakash Dhavali
commit 14aa8ea2ee
1 changed files with 17 additions and 2 deletions
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19
core/cds/src/cds_reg_service.c
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@ -1208,13 +1208,13 @@ static void restore_custom_reg_settings(struct wiphy *wiphy)
#endif
/**
* hdd_reg_notifier() - regulatory notifier
* __hdd_reg_notifier() - regulatory notifier
* @wiphy: wiphy
* @request: regulatory request
*
* Return: void or int
*/
void hdd_reg_notifier(struct wiphy *wiphy,
void __hdd_reg_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
@ -1359,6 +1359,21 @@ void hdd_reg_notifier(struct wiphy *wiphy,
return;
}
/**
* hdd_reg_notifier() - regulatory notifier
* @wiphy: wiphy
* @request: regulatory request
*
* Return: void or int
*/
void hdd_reg_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
cds_ssr_protect(__func__);
__hdd_reg_notifier(wiphy, request);
cds_ssr_unprotect(__func__);
}
/**
* cds_regulatory_init() - regulatory_init
* Return: CDF_STATUS