Merge "msm: ipa3: Add spinlock to avoid deleting already deleted list" (347dbf72) · Commits · e / devices / android_kernel_sony_msm8998

drivers/platform/msm/ipa/ipa_v3/ipa_dp.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -2093,6 +2093,8 @@ static void ipa3_cleanup_wlan_rx_common_cache(void)
		struct ipa3_rx_pkt_wrapper *rx_pkt;
		struct ipa3_rx_pkt_wrapper *tmp;

		spin_lock_bh(&ipa3_ctx->wc_memb.wlan_spinlock);

		list_for_each_entry_safe(rx_pkt, tmp,
		&ipa3_ctx->wc_memb.wlan_comm_desc_list, link) {
		list_del(&rx_pkt->link);
		@@ -2113,6 +2115,8 @@ static void ipa3_cleanup_wlan_rx_common_cache(void)
		IPAERR("wlan comm buff total cnt: %d\n",
		ipa3_ctx->wc_memb.wlan_comm_total_cnt);

		spin_unlock_bh(&ipa3_ctx->wc_memb.wlan_spinlock);

		}

		static void ipa3_alloc_wlan_rx_common_cache(u32 size)
		@@ -2150,11 +2154,13 @@ static void ipa3_alloc_wlan_rx_common_cache(u32 size)
		goto fail_dma_mapping;
		}

		spin_lock_bh(&ipa3_ctx->wc_memb.wlan_spinlock);
		list_add_tail(&rx_pkt->link,
		&ipa3_ctx->wc_memb.wlan_comm_desc_list);
		rx_len_cached = ++ipa3_ctx->wc_memb.wlan_comm_total_cnt;

		ipa3_ctx->wc_memb.wlan_comm_free_cnt++;
		spin_unlock_bh(&ipa3_ctx->wc_memb.wlan_spinlock);

		}