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Sun, 20 Feb 2022 15:16:12 -0800 (PST) Received: from tong-desktop.local ([2600:1700:3ec7:421f:4bcb:4067:79cf:393f]) by smtp.googlemail.com with ESMTPSA id j4sm3092087pfj.218.2022.02.20.15.16.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 20 Feb 2022 15:16:12 -0800 (PST) From: Tong Zhang To: Greg Kroah-Hartman , Jakub Kicinski , Lee Jones , Colin Ian King , Saurav Girepunje , Johan Hovold , Tong Zhang , =?UTF-8?q?Cl=C3=A1udio=20Maia?= , linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH] staging: rtl8192u: cleanup proc fs entries upon exit Date: Sun, 20 Feb 2022 15:15:53 -0800 Message-Id: <20220220231554.2510567-1-ztong0001@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE 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: X-Mailing-List: linux-kernel@vger.kernel.org proc fs entries need to be removed when module is removed, otherwise when we try to insert the module again, kernel will complain [ 493.068012] proc_dir_entry 'net/ieee80211' already registered [ 493.271973] proc_mkdir+0x18/0x20 [ 493.272136] ieee80211_debug_init+0x28/0xde8 [r8192u_usb] [ 493.272404] rtl8192_usb_module_init+0x10/0x161 [r8192u_usb] [ 13.910616] proc_dir_entry 'net/rtl819xU' already registered [ 13.918931] proc_mkdir+0x18/0x20 [ 13.919098] rtl8192_usb_module_init+0x142/0x16d [r8192u_usb] Signed-off-by: Tong Zhang --- drivers/staging/rtl8192u/r8192U_core.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 364e1ca94f70..683afdc667bc 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -4825,6 +4825,11 @@ static int __init rtl8192_usb_module_init(void) static void __exit rtl8192_usb_module_exit(void) { usb_deregister(&rtl8192_usb_driver); + remove_proc_entry(RTL819XU_MODULE_NAME, init_net.proc_net); + +#ifdef CONFIG_IEEE80211_DEBUG + ieee80211_debug_exit(); +#endif RT_TRACE(COMP_DOWN, "Exiting"); } -- 2.25.1