Messages in this thread Patch in this message | | | From | SongJingyi <> | Subject | [PATCH] ptp_qoriq: fix memory leak in probe() | Date | Fri, 24 Mar 2023 11:14:06 +0800 |
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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> --- drivers/ptp/ptp_qoriq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/ptp/ptp_qoriq.c b/drivers/ptp/ptp_qoriq.c index 61530167efe4..350154e4c2b5 100644 --- a/drivers/ptp/ptp_qoriq.c +++ b/drivers/ptp/ptp_qoriq.c @@ -637,7 +637,7 @@ 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: -- 2.34.1
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