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Commit 885eac23 authored by Utkarsh Saxena's avatar Utkarsh Saxena Committed by Gerrit - the friendly Code Review server
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msm: ipa: Add spinlock to avoid deleting already deleted list 



There is a chance of deleting, already deleted list
in ipa_cleanup_wlan_rx_common_cache API.

Protect the wlan_comm_desc_list,
with the spinlock to avoid this deletion.

Change-Id: Ia05d47d7b54540eff6ef20f86dee410152457caa
Acked-by: default avatarMohammed Javid <mjavid@qti.qualcomm.com>
Signed-off-by: default avatarUtkarsh Saxena <usaxena@codeaurora.org>
parent 79459f1b

drivers/platform/msm/ipa/ipa_v2/ipa_dp.c

+4 −0
Original line number Diff line number Diff line
@@ -1871,6 +1871,8 @@ static void ipa_cleanup_wlan_rx_common_cache(void) 
	struct ipa_rx_pkt_wrapper *rx_pkt;

	struct ipa_rx_pkt_wrapper *tmp;



	spin_lock_bh(&ipa_ctx->wc_memb.wlan_spinlock);



	list_for_each_entry_safe(rx_pkt, tmp,

		&ipa_ctx->wc_memb.wlan_comm_desc_list, link) {

		list_del(&rx_pkt->link);
@@ -1891,6 +1893,8 @@ static void ipa_cleanup_wlan_rx_common_cache(void) 
		IPAERR("wlan comm buff total cnt: %d\n",

			ipa_ctx->wc_memb.wlan_comm_total_cnt);



	spin_unlock_bh(&ipa_ctx->wc_memb.wlan_spinlock);



}



static void ipa_alloc_wlan_rx_common_cache(u32 size)