git: 91e025689e4f - stable/13 - iwlwifi: import two fixes from linux v5.18-rc7

The branch stable/13 has been updated by bz:

URL: https://cgit.FreeBSD.org/src/commit/?id=91e025689e4f9489de7071d0c780dfedf7016a26

commit 91e025689e4f9489de7071d0c780dfedf7016a26
Author:     Bjoern A. Zeeb <bz@FreeBSD.org>
AuthorDate: 2022-05-16 18:07:36 +0000
Commit:     Bjoern A. Zeeb <bz@FreeBSD.org>
CommitDate: 2022-06-03 16:56:33 +0000

    iwlwifi: import two fixes from linux v5.18-rc7
    
    Import two changes from torvalds/linux.git at tag: v5.18-rc7:
    b20bdd9cc9740ac1f2138adab25ddd51245c67be
        iwlwifi: mvm: Don't fail if PPAG isn't supported
    7635a1ad8d92dcc8247b53f949e37795154b5b6f
        iwlwifi: iwl-dbg: Use del_timer_sync() before freeing
    
    Sponsored by:   The FreeBSD Foundation
    
    (cherry picked from commit 88a15f72cf6b4e80688daf56a7ac493999f25ccd)
---
 sys/contrib/dev/iwlwifi/iwl-dbg-tlv.c | 2 +-
 sys/contrib/dev/iwlwifi/mvm/fw.c      | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/sys/contrib/dev/iwlwifi/iwl-dbg-tlv.c b/sys/contrib/dev/iwlwifi/iwl-dbg-tlv.c
index 866a33f49915..3237d4b528b5 100644
--- a/sys/contrib/dev/iwlwifi/iwl-dbg-tlv.c
+++ b/sys/contrib/dev/iwlwifi/iwl-dbg-tlv.c
@@ -371,7 +371,7 @@ void iwl_dbg_tlv_del_timers(struct iwl_trans *trans)
 	struct iwl_dbg_tlv_timer_node *node, *tmp;
 
 	list_for_each_entry_safe(node, tmp, timer_list, list) {
-		del_timer(&node->timer);
+		del_timer_sync(&node->timer);
 		list_del(&node->list);
 		kfree(node);
 	}
diff --git a/sys/contrib/dev/iwlwifi/mvm/fw.c b/sys/contrib/dev/iwlwifi/mvm/fw.c
index 747d03471f0d..766bd7c7f9cf 100644
--- a/sys/contrib/dev/iwlwifi/mvm/fw.c
+++ b/sys/contrib/dev/iwlwifi/mvm/fw.c
@@ -1015,8 +1015,9 @@ int iwl_mvm_ppag_send_cmd(struct iwl_mvm *mvm)
 	int ret, cmd_size;
 
 	ret = iwl_read_ppag_table(&mvm->fwrt, &cmd, &cmd_size);
+	/* Not supporting PPAG table is a valid scenario */
 	if(ret < 0)
-		return ret;
+		return 0;
 
 	IWL_DEBUG_RADIO(mvm, "Sending PER_PLATFORM_ANT_GAIN_CMD\n");
 	ret = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(PHY_OPS_GROUP,