ptp_qoriq: fix memory leak in probe()

[ Upstream commit f33642224e38d7e0d59336e10e7b4e370b1c4506 ]

Smatch complains that:
drivers/ptp/ptp_qoriq.c ptp_qoriq_probe()
warn: 'base' from ioremap() not released.

Fix this by revising the parameter from 'ptp_qoriq->base' to 'base'.
This is only a bug if ptp_qoriq_init() returns on the
first -ENODEV error path.
For other error paths ptp_qoriq->base and base are the same.
And this change makes the code more readable.

Fixes: 7f4399ba405b ("ptp_qoriq: fix NULL access if ptp dt node missing")
Signed-off-by: SongJingyi <u201912584@hust.edu.cn>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Link: https://lore.kernel.org/r/20230324031406.1895159-1-u201912584@hust.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/ptp/ptp_qoriq.c b/drivers/ptp/ptp_qoriq.c
index 08f4cf0ad9e3cacb8ac0e55f6f6003c74d53453a..8fa9772acf79b429899d5e363a7fd31215c66ee6 100644 (file)
--- a/drivers/ptp/ptp_qoriq.c
+++ b/drivers/ptp/ptp_qoriq.c
@@ -601,7 +601,7 @@ static int ptp_qoriq_probe(struct platform_device *dev)
        return 0;
 
 no_clock:
-       iounmap(ptp_qoriq->base);
+       iounmap(base);
 no_ioremap:
        release_resource(ptp_qoriq->rsrc);
 no_resource: