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List:       git-commits-head
Subject:    ptp: Set lookup cookie when creating a PTP PPS source.
From:       Linux Kernel Mailing List <linux-kernel () vger ! kernel ! org>
Date:       2021-06-30 23:50:36
Message-ID: git-mailbomb-linux-master-8602e40fc8132383298f304ae060d80f210be23c () kernel ! org
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Commit:     8602e40fc8132383298f304ae060d80f210be23c
Parent:     c79fa61c94f7a7aa7a185509fca1e1ae5c44ab23
Refname:    refs/heads/master
Web:        https://git.kernel.org/torvalds/c/8602e40fc8132383298f304ae060d80f210be23c
Author:     Jonathan Lemon <jonathan.lemon@gmail.com>
AuthorDate: Mon Jun 28 11:25:33 2021 -0700
Committer:  David S. Miller <davem@davemloft.net>
CommitDate: Tue Jun 29 11:29:37 2021 -0700

    ptp: Set lookup cookie when creating a PTP PPS source.
    
    When creating a PTP device, the configuration block allows
    creation of an associated PPS device.  However, there isn't
    any way to associate the two devices after creation.
    
    Set the PPS cookie, so pps_lookup_dev(ptp) performs correctly.
    
    Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/ptp/ptp_clock.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c
index 841d8900504d2..a23a37a4d5dc3 100644
--- a/drivers/ptp/ptp_clock.c
+++ b/drivers/ptp/ptp_clock.c
@@ -218,6 +218,7 @@ struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info,
 			pr_err("failed to create ptp aux_worker %d\n", err);
 			goto kworker_err;
 		}
+		ptp->pps_source->lookup_cookie = ptp;
 	}
 
 	err = ptp_populate_pin_groups(ptp);
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