Message ID | 20230202141621.2296458-1-gregkh@linuxfoundation.org |
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State | New |
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Wysocki" <rafael@kernel.org> Subject: [PATCH 1/2] drivers: base: component: fix memory leak with using debugfs_lookup() Date: Thu, 2 Feb 2023 15:16:20 +0100 Message-Id: <20230202141621.2296458-1-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.39.1 MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=969; i=gregkh@linuxfoundation.org; h=from:subject; bh=T3ZJvCbM5JYguoygRhNxV8L62VNl5R7w++Crx8Qvyck=; b=owGbwMvMwCRo6H6F97bub03G02pJDMm3j26N88vMn1Rkwhj7I5b3qSpn86xF9x/XeG3keXZr8u+X CjFSHbEsDIJMDLJiiixftvEc3V9xSNHL0PY0zBxWJpAhDFycAjCRIGeGBXO3eTlxHayRO/fl5pYp9z 0+7Tmxx5FhwTxdQR8f1jblLEfuyPPOac0q72NMAA== X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1756729230055018612?= X-GMAIL-MSGID: =?utf-8?q?1756729230055018612?= |
Series |
[1/2] drivers: base: component: fix memory leak with using debugfs_lookup()
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Commit Message
Greg KH
Feb. 2, 2023, 2:16 p.m. UTC
When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time. To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic
at once.
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/base/component.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/base/component.c b/drivers/base/component.c index 5eadeac6c532..7dbf14a1d915 100644 --- a/drivers/base/component.c +++ b/drivers/base/component.c @@ -125,7 +125,7 @@ static void component_debugfs_add(struct aggregate_device *m) static void component_debugfs_del(struct aggregate_device *m) { - debugfs_remove(debugfs_lookup(dev_name(m->parent), component_debugfs_dir)); + debugfs_lookup_and_remove(dev_name(m->parent), component_debugfs_dir); } #else