Patch "wifi: iwlwifi: mvm: return uid from iwl_mvm_build_scan_cmd" has been added to the 5.15-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    wifi: iwlwifi: mvm: return uid from iwl_mvm_build_scan_cmd

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     wifi-iwlwifi-mvm-return-uid-from-iwl_mvm_build_scan_.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit b1826c2d9c3ed8435edd97bd10f9e7699fc7fb17
Author: Miri Korenblit <miriam.rachel.korenblit@xxxxxxxxx>
Date:   Mon Apr 15 11:54:44 2024 +0300

    wifi: iwlwifi: mvm: return uid from iwl_mvm_build_scan_cmd
    
    [ Upstream commit bada85a3f584763deadd201147778c3e791d279c ]
    
    This function is supposed to return a uid on success, and an errno in
    failure.
    But it currently returns the return value of the specific cmd version
    handler, which in turn returns 0 on success and errno otherwise.
    This means that on success, iwl_mvm_build_scan_cmd will return 0
    regardless if the actual uid.
    Fix this by returning the uid if the handler succeeded.
    
    Fixes: 687db6ff5b70 ("iwlwifi: scan: make new scan req versioning flow")
    Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@xxxxxxxxx>
    Reviewed-by: Ilan Peer <ilan.peer@xxxxxxxxx>
    Link: https://msgid.link/20240415114847.5e2d602b3190.I4c4931021be74a67a869384c8f8ee7463e0c7857@changeid
    Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
index e4fd58f043ce2..c0ffa26bc5aaa 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -2571,7 +2571,8 @@ static int iwl_mvm_build_scan_cmd(struct iwl_mvm *mvm,
 		if (ver_handler->version != scan_ver)
 			continue;
 
-		return ver_handler->handler(mvm, vif, params, type, uid);
+		err = ver_handler->handler(mvm, vif, params, type, uid);
+		return err ? : uid;
 	}
 
 	err = iwl_mvm_scan_umac(mvm, vif, params, type, uid);