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Signed-off-by: Bumwoo Lee --- drivers/extcon/extcon.c | 111 +++++++++++++++++++++++----------------- 1 file changed, 65 insertions(+), 46 deletions(-) diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c index adcf01132f70..402d674e2896 100644 --- a/drivers/extcon/extcon.c +++ b/drivers/extcon/extcon.c @@ -1070,6 +1070,66 @@ void extcon_dev_free(struct extcon_dev *edev) } EXPORT_SYMBOL_GPL(extcon_dev_free); +/** + * extcon_alloc_cables() - alloc the cables for extcon device + * @edev: extcon device which has cables + * + * Returns 0 if success or error number if fail. + */ +static int extcon_alloc_cables(struct extcon_dev *edev) +{ + int index; + char *str; + struct extcon_cable *cable; + + if (!edev) + return -EINVAL; + + if (!edev->max_supported) + return 0; + + edev->cables = kcalloc(edev->max_supported, + sizeof(struct extcon_cable), + GFP_KERNEL); + if (!edev->cables) + return -ENOMEM; + + for (index = 0; index < edev->max_supported; index++) { + cable = &edev->cables[index]; + + str = kasprintf(GFP_KERNEL, "cable.%d", index); + if (!str) { + for (index--; index >= 0; index--) { + cable = &edev->cables[index]; + kfree(cable->attr_g.name); + } + + kfree(edev->cables); + return -ENOMEM; + } + + cable->edev = edev; + cable->cable_index = index; + cable->attrs[0] = &cable->attr_name.attr; + cable->attrs[1] = &cable->attr_state.attr; + cable->attrs[2] = NULL; + cable->attr_g.name = str; + cable->attr_g.attrs = cable->attrs; + + sysfs_attr_init(&cable->attr_name.attr); + cable->attr_name.attr.name = "name"; + cable->attr_name.attr.mode = 0444; + cable->attr_name.show = cable_name_show; + + sysfs_attr_init(&cable->attr_state.attr); + cable->attr_state.attr.name = "state"; + cable->attr_state.attr.mode = 0444; + cable->attr_state.show = cable_state_show; + } + + return 0; +} + /** * extcon_dev_register() - Register an new extcon device * @edev: the extcon device to be registered @@ -1117,50 +1177,9 @@ int extcon_dev_register(struct extcon_dev *edev) dev_set_name(&edev->dev, "extcon%lu", (unsigned long)atomic_inc_return(&edev_no)); - if (edev->max_supported) { - char *str; - struct extcon_cable *cable; - - edev->cables = kcalloc(edev->max_supported, - sizeof(struct extcon_cable), - GFP_KERNEL); - if (!edev->cables) { - ret = -ENOMEM; - goto err_sysfs_alloc; - } - for (index = 0; index < edev->max_supported; index++) { - cable = &edev->cables[index]; - - str = kasprintf(GFP_KERNEL, "cable.%d", index); - if (!str) { - for (index--; index >= 0; index--) { - cable = &edev->cables[index]; - kfree(cable->attr_g.name); - } - ret = -ENOMEM; - - goto err_alloc_cables; - } - - cable->edev = edev; - cable->cable_index = index; - cable->attrs[0] = &cable->attr_name.attr; - cable->attrs[1] = &cable->attr_state.attr; - cable->attrs[2] = NULL; - cable->attr_g.name = str; - cable->attr_g.attrs = cable->attrs; - - sysfs_attr_init(&cable->attr_name.attr); - cable->attr_name.attr.name = "name"; - cable->attr_name.attr.mode = 0444; - cable->attr_name.show = cable_name_show; - - sysfs_attr_init(&cable->attr_state.attr); - cable->attr_state.attr.name = "state"; - cable->attr_state.attr.mode = 0444; - cable->attr_state.show = cable_state_show; - } - } + ret = extcon_alloc_cables(edev); + if (ret < 0) + goto err_alloc_cables; if (edev->max_supported && edev->mutually_exclusive) { char *name; @@ -1279,10 +1298,10 @@ int extcon_dev_register(struct extcon_dev *edev) err_muex: for (index = 0; index < edev->max_supported; index++) kfree(edev->cables[index].attr_g.name); -err_alloc_cables: if (edev->max_supported) kfree(edev->cables); -err_sysfs_alloc: +err_alloc_cables: + return ret; } EXPORT_SYMBOL_GPL(extcon_dev_register); From patchwork Mon Mar 20 03:19:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bumwoo Lee X-Patchwork-Id: 71950 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:604a:0:0:0:0:0 with SMTP id j10csp1006375wrt; Sun, 19 Mar 2023 21:09:33 -0700 (PDT) X-Google-Smtp-Source: AK7set+9/+5DKi71P4UnmR9neba3uvRHszf0cBCJPir62K2reXvgJ3I376YCSWJ/rEX5whx2w+xU X-Received: by 2002:a17:90b:3548:b0:23b:4bce:97de with SMTP id lt8-20020a17090b354800b0023b4bce97demr13318603pjb.4.1679285372644; 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Signed-off-by: Bumwoo Lee --- drivers/extcon/extcon.c | 109 ++++++++++++++++++++++------------------ 1 file changed, 61 insertions(+), 48 deletions(-) diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c index 402d674e2896..86290afa35fb 100644 --- a/drivers/extcon/extcon.c +++ b/drivers/extcon/extcon.c @@ -1130,6 +1130,63 @@ static int extcon_alloc_cables(struct extcon_dev *edev) return 0; } +/** + * extcon_alloc_muex() - alloc the mutual exclusive for extcon device + * @edev: extcon device + * + * Returns 0 if success or error number if fail. + */ +static int extcon_alloc_muex(struct extcon_dev *edev) +{ + char *name; + int index; + + if (!edev) + return -EINVAL; + + if (!(edev->max_supported && edev->mutually_exclusive)) + return 0; + + /* Count the size of mutually_exclusive array */ + for (index = 0; edev->mutually_exclusive[index]; index++) + ; + + edev->attrs_muex = kcalloc(index + 1, + sizeof(struct attribute *), + GFP_KERNEL); + if (!edev->attrs_muex) + return -ENOMEM; + + edev->d_attrs_muex = kcalloc(index, + sizeof(struct device_attribute), + GFP_KERNEL); + if (!edev->d_attrs_muex) { + kfree(edev->attrs_muex); + return -ENOMEM; + } + + for (index = 0; edev->mutually_exclusive[index]; index++) { + name = kasprintf(GFP_KERNEL, "0x%x", + edev->mutually_exclusive[index]); + if (!name) { + for (index--; index >= 0; index--) + kfree(edev->d_attrs_muex[index].attr.name); + + kfree(edev->d_attrs_muex); + kfree(edev->attrs_muex); + return -ENOMEM; + } + sysfs_attr_init(&edev->d_attrs_muex[index].attr); + edev->d_attrs_muex[index].attr.name = name; + edev->d_attrs_muex[index].attr.mode = 0000; + edev->attrs_muex[index] = &edev->d_attrs_muex[index].attr; + } + edev->attr_g_muex.name = muex_name; + edev->attr_g_muex.attrs = edev->attrs_muex; + + return 0; +} + /** * extcon_dev_register() - Register an new extcon device * @edev: the extcon device to be registered @@ -1181,53 +1238,9 @@ int extcon_dev_register(struct extcon_dev *edev) if (ret < 0) goto err_alloc_cables; - if (edev->max_supported && edev->mutually_exclusive) { - char *name; - - /* Count the size of mutually_exclusive array */ - for (index = 0; edev->mutually_exclusive[index]; index++) - ; - - edev->attrs_muex = kcalloc(index + 1, - sizeof(struct attribute *), - GFP_KERNEL); - if (!edev->attrs_muex) { - ret = -ENOMEM; - goto err_muex; - } - - edev->d_attrs_muex = kcalloc(index, - sizeof(struct device_attribute), - GFP_KERNEL); - if (!edev->d_attrs_muex) { - ret = -ENOMEM; - kfree(edev->attrs_muex); - goto err_muex; - } - - for (index = 0; edev->mutually_exclusive[index]; index++) { - name = kasprintf(GFP_KERNEL, "0x%x", - edev->mutually_exclusive[index]); - if (!name) { - for (index--; index >= 0; index--) { - kfree(edev->d_attrs_muex[index].attr. - name); - } - kfree(edev->d_attrs_muex); - kfree(edev->attrs_muex); - ret = -ENOMEM; - goto err_muex; - } - sysfs_attr_init(&edev->d_attrs_muex[index].attr); - edev->d_attrs_muex[index].attr.name = name; - edev->d_attrs_muex[index].attr.mode = 0000; - edev->attrs_muex[index] = &edev->d_attrs_muex[index] - .attr; - } - edev->attr_g_muex.name = muex_name; - edev->attr_g_muex.attrs = edev->attrs_muex; - - } + ret = extcon_alloc_muex(edev); + if (ret < 0) + goto err_alloc_muex; if (edev->max_supported) { edev->extcon_dev_type.groups = @@ -1295,7 +1308,7 @@ int extcon_dev_register(struct extcon_dev *edev) kfree(edev->d_attrs_muex); kfree(edev->attrs_muex); } -err_muex: +err_alloc_muex: for (index = 0; index < edev->max_supported; index++) kfree(edev->cables[index].attr_g.name); if (edev->max_supported) From patchwork Mon Mar 20 03:19:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bumwoo Lee X-Patchwork-Id: 71958 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:604a:0:0:0:0:0 with SMTP id j10csp1008058wrt; Sun, 19 Mar 2023 21:16:16 -0700 (PDT) X-Google-Smtp-Source: AK7set+y+v0Sy9hkhC1x4RioVAKzWwZYsMRLvylPQdZLgLbtDduDIaFFnD8VJ73nLRc237fapa+1 X-Received: by 2002:a17:902:e742:b0:19f:382d:9740 with SMTP id p2-20020a170902e74200b0019f382d9740mr15815032plf.3.1679285776335; 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Mon, 20 Mar 2023 12:19:47 +0900 (KST) Received: from VDBS1418.vd.sec.samsung.net (unknown [168.219.244.30]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20230320031947epsmtip119eea3f84b8bbcb5a90fa04cb0ceb533~OAm81HF6S1384113841epsmtip1v; Mon, 20 Mar 2023 03:19:47 +0000 (GMT) From: Bumwoo Lee To: MyungJoo Ham , Chanwoo Choi , linux-kernel@vger.kernel.org Cc: Bumwoo Lee Subject: [PATCH v5 3/3] extcon: Add extcon_alloc_groups to simplify extcon register function Date: Mon, 20 Mar 2023 12:19:39 +0900 Message-Id: <20230320031939.28862-4-bw365.lee@samsung.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20230320031939.28862-1-bw365.lee@samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrDKsWRmVeSWpSXmKPExsWy7bCmge6VC+IpBt2d7BYn1ixisrj+5Tmr xeVdc9gsbjeuYHNg8ejbsorR4/MmuQCmqGybjNTElNQihdS85PyUzLx0WyXv4HjneFMzA0Nd Q0sLcyWFvMTcVFslF58AXbfMHKBFSgpliTmlQKGAxOJiJX07m6L80pJUhYz84hJbpdSClJwC swK94sTc4tK8dL281BIrQwMDI1OgwoTsjEldnYwFO4UrVk16wdTA2CLQxcjJISFgItGz+Dlz FyMXh5DADkaJX1+nQjmfGCXmXX7HBOF8Y5RYf20iM0zLuvvtbCC2kMBeRonva9Mgin4xSty9 dpMFJMEmoCGx52IDUBEHh4hAocTh/myQMLOAmsSDVRvZQWxhgTiJjZeawWwWAVWJt8snMoHY vAJWEm83bWKB2CUv0f3vD5jNKWAtcfH4J0aIGkGJkzOfsEDMlJdo3job7GoJgV3sEgtfvYA6 1EXi+uKtTBC2sMSr41vYIWwpiZf9bVB2usTKK3eg7ByJ1/fbGSFsY4l3b9cyg9zPLKApsX6X PkRYUWLn77mMEHv5JN597WEFKZEQ4JXoaBOCKFGW6H7wAmqrpMTip3cYIUo8JG7ez4eEVB+j RMvDDawTGBVmIflmFpJvZiEsXsDIvIpRLLWgODc9tdiwwBAev8n5uZsYwclOy3QH48S3H/QO MTJxMB5ilOBgVhLh9VsgmiLEm5JYWZValB9fVJqTWnyI0RQY1hOZpUST84HpNq8k3tDE0sDE zMjEwtjS2ExJnFfc9mSykEB6YklqdmpqQWoRTB8TB6dUA1PXBcdlOutyHRaYXA6drq8TeeVp VGlu/fb0HFvlr0K1NyZvfZDOU7SudWJXZ/SihhnXD8+c/en1ot62Hx/713z7G5ls4aTwjvPe mnaJHI8fRmcVzZ15+pfXMHNfatnJK9X2aEr1oVnTGfaYcZxZG7B5+tU9SuWqib0LdF6bb5iz zZSpPOVp/Kltr9QXfvtv4ZP5I13i8yOJzpSo+7O5n9fo3Np3w/6JbH5tfvGHnCdf9JRr9zxl u5RwJnt2+Pf9Jbt4Pm3MiV49RWta7bUJl26/+2DsyLeQ0VT/XvbSSYIL380tqeVm3Btfqrhq Gss+XWbNpUpla8IWM2xOlco2mWyl+G+5g66H95QYVW3Fs2uVWIozEg21mIuKEwG4tqCH/wMA AA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrOLMWRmVeSWpSXmKPExsWy7bCSnO7lC+IpBnfXG1icWLOIyeL6l+es Fpd3zWGzuN24gs2BxaNvyypGj8+b5AKYorhsUlJzMstSi/TtErgyJnV1MhbsFK5YNekFUwNj i0AXIyeHhICJxLr77WxdjFwcQgK7GSW6lr1jhUhISpxd/oi9i5EDyBaWOHy4GKLmB6PE/5N/ WUBq2AQ0JPZcbGADsUUEiiUuHFgMFmcWUJN4sGojO4gtLBAjcbHvD1gNi4CqxNvlE5lAbF4B K4m3mzaxQOySl+j+9wfM5hSwlrh4/BMjyF4hoJrf/RkQ5YISJ2c+gRovL9G8dTbzBEaBWUhS s5CkFjAyrWKUTC0ozk3PLTYsMMxLLdcrTswtLs1L10vOz93ECA5LLc0djNtXfdA7xMjEwXiI UYKDWUmE12+BaIoQb0piZVVqUX58UWlOavEhRmkOFiVx3gtdJ+OFBNITS1KzU1MLUotgskwc nFINTFnLV28+qfajaMuCXA7mkzxP3vw83/9vhc/Dak+nsKulEldylOKaN5+Zd9eZb+blX2u1 12qoBOvGXIvgapjPVxIfMCVl8e51DMYzVnDf/8lokuO3SUefbZ5D6Mfu8lSxBI0F4ndNH0ck Hr0UyHHl7V6ZK/dfpJmX+C0zfXM5zeOca2z2Vf5ZG15pT1eSDj9VnlKxybLx4RmW5+HrpdJz k2b+NnuuscWle+E//WfbJ4ktbwt8kvfjjE532YuV9uy7JHbcbd1t9qH9wJFtqw2s2N0Y+liW nF8rfFic/0RIx/qLL/oad3c9FxNLYwtlcTAwjVlap3B5sdatm99XfWW4c8pLUI+XYaPnp4JT TOyce5VYijMSDbWYi4oTAaEXIha6AgAA X-CMS-MailID: 20230320031947epcas1p17117b8bc458903348e9b29061d00b343 X-Msg-Generator: CA X-Sendblock-Type: SVC_REQ_APPROVE CMS-TYPE: 101P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20230320031947epcas1p17117b8bc458903348e9b29061d00b343 References: <20230320031939.28862-1-bw365.lee@samsung.com> X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS,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: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1760858762085714966?= X-GMAIL-MSGID: =?utf-8?q?1760858762085714966?= The alloc groups is functionalized from extcon_dev_register. Signed-off-by: Bumwoo Lee --- drivers/extcon/extcon.c | 61 ++++++++++++++++++++++++++--------------- 1 file changed, 39 insertions(+), 22 deletions(-) diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c index 86290afa35fb..26a84bed0874 100644 --- a/drivers/extcon/extcon.c +++ b/drivers/extcon/extcon.c @@ -1187,6 +1187,42 @@ static int extcon_alloc_muex(struct extcon_dev *edev) return 0; } +/** + * extcon_alloc_groups() - alloc the groups for extcon device + * @edev: extcon device + * + * Returns 0 if success or error number if fail. + */ +static int extcon_alloc_groups(struct extcon_dev *edev) +{ + int index; + + if (!edev) + return -EINVAL; + + if (!edev->max_supported) + return 0; + + edev->extcon_dev_type.groups = kcalloc(edev->max_supported + 2, + sizeof(struct attribute_group *), + GFP_KERNEL); + if (!edev->extcon_dev_type.groups) + return -ENOMEM; + + edev->extcon_dev_type.name = dev_name(&edev->dev); + edev->extcon_dev_type.release = dummy_sysfs_dev_release; + + for (index = 0; index < edev->max_supported; index++) + edev->extcon_dev_type.groups[index] = &edev->cables[index].attr_g; + + if (edev->mutually_exclusive) + edev->extcon_dev_type.groups[index] = &edev->attr_g_muex; + + edev->dev.type = &edev->extcon_dev_type; + + return 0; +} + /** * extcon_dev_register() - Register an new extcon device * @edev: the extcon device to be registered @@ -1242,28 +1278,9 @@ int extcon_dev_register(struct extcon_dev *edev) if (ret < 0) goto err_alloc_muex; - if (edev->max_supported) { - edev->extcon_dev_type.groups = - kcalloc(edev->max_supported + 2, - sizeof(struct attribute_group *), - GFP_KERNEL); - if (!edev->extcon_dev_type.groups) { - ret = -ENOMEM; - goto err_alloc_groups; - } - - edev->extcon_dev_type.name = dev_name(&edev->dev); - edev->extcon_dev_type.release = dummy_sysfs_dev_release; - - for (index = 0; index < edev->max_supported; index++) - edev->extcon_dev_type.groups[index] = - &edev->cables[index].attr_g; - if (edev->mutually_exclusive) - edev->extcon_dev_type.groups[index] = - &edev->attr_g_muex; - - edev->dev.type = &edev->extcon_dev_type; - } + ret = extcon_alloc_groups(edev); + if (ret < 0) + goto err_alloc_groups; spin_lock_init(&edev->lock); if (edev->max_supported) {