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[71.34.69.82]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-20c138cbbc2sm61076365ad.78.2024.10.08.18.17.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Oct 2024 18:17:41 -0700 (PDT) From: Drew Fustini Date: Tue, 08 Oct 2024 18:16:46 -0700 Subject: [PATCH v3 1/3] pinctrl: th1520: Fix return value for unknown pin error Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241008-th1520-pinctrl-fixes-v3-1-5b60db446a49@tenstorrent.com> References: <20241008-th1520-pinctrl-fixes-v3-0-5b60db446a49@tenstorrent.com> In-Reply-To: <20241008-th1520-pinctrl-fixes-v3-0-5b60db446a49@tenstorrent.com> To: Drew Fustini , Guo Ren , Fu Wei , Linus Walleij Cc: linux-riscv@lists.infradead.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Dan Carpenter , Drew Fustini X-Mailer: b4 0.14.1 Fix th1520_pinctrl_dt_node_to_map() to set the return value before jumping to free_configs when an unknown pin error occurs. Reported-by: Dan Carpenter Closes: https://lore.kernel.org/r/202410022336.xyWlV0Tf-lkp@intel.com/ Signed-off-by: Drew Fustini --- drivers/pinctrl/pinctrl-th1520.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pinctrl/pinctrl-th1520.c b/drivers/pinctrl/pinctrl-th1520.c index 9331f4462480..265a75a78d5a 100644 --- a/drivers/pinctrl/pinctrl-th1520.c +++ b/drivers/pinctrl/pinctrl-th1520.c @@ -499,6 +499,7 @@ static int th1520_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, nmaps = rollback; dev_err(thp->pctl->dev, "%pOFn.%pOFn: unknown pin '%s'\n", np, child, pinname); + ret = -EINVAL; goto free_configs; } From patchwork Wed Oct 9 01:16:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Drew Fustini X-Patchwork-Id: 1994524 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=tenstorrent.com header.i=@tenstorrent.com header.a=rsa-sha256 header.s=google header.b=A6YwTmDr; 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Suggested-by: Linus Walleij Signed-off-by: Drew Fustini --- drivers/pinctrl/pinctrl-th1520.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/pinctrl/pinctrl-th1520.c b/drivers/pinctrl/pinctrl-th1520.c index 265a75a78d5a..7ed3f82b9339 100644 --- a/drivers/pinctrl/pinctrl-th1520.c +++ b/drivers/pinctrl/pinctrl-th1520.c @@ -444,7 +444,7 @@ static int th1520_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, return -ENOMEM; nmaps = 0; - mutex_lock(&thp->mutex); + guard(mutex)(&thp->mutex); for_each_available_child_of_node(np, child) { unsigned int rollback = nmaps; enum th1520_muxtype muxtype; @@ -531,7 +531,6 @@ static int th1520_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, *maps = map; *num_maps = nmaps; - mutex_unlock(&thp->mutex); return 0; free_configs: @@ -539,7 +538,6 @@ static int th1520_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, put_child: of_node_put(child); th1520_pinctrl_dt_free_map(pctldev, map, nmaps); - mutex_unlock(&thp->mutex); 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[71.34.69.82]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-20c138cbbc2sm61076365ad.78.2024.10.08.18.17.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Oct 2024 18:17:43 -0700 (PDT) From: Drew Fustini Date: Tue, 08 Oct 2024 18:16:48 -0700 Subject: [PATCH v3 3/3] pinctrl: th1520: Convert dt child node loop to scoped iterator Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241008-th1520-pinctrl-fixes-v3-3-5b60db446a49@tenstorrent.com> References: <20241008-th1520-pinctrl-fixes-v3-0-5b60db446a49@tenstorrent.com> In-Reply-To: <20241008-th1520-pinctrl-fixes-v3-0-5b60db446a49@tenstorrent.com> To: Drew Fustini , Guo Ren , Fu Wei , Linus Walleij Cc: linux-riscv@lists.infradead.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Drew Fustini X-Mailer: b4 0.14.1 Convert th1520_pinctrl_dt_node_to_map() to use a scoped iterator with for_each_available_child_of_node_scoped(). As a result, there is no need to call of_node_put() anymore. The put_child label has been renamed to free_map which is now a more accurate description. Suggested-by: Linus Walleij Signed-off-by: Drew Fustini --- drivers/pinctrl/pinctrl-th1520.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/pinctrl/pinctrl-th1520.c b/drivers/pinctrl/pinctrl-th1520.c index 7ed3f82b9339..c8d2ee6defa7 100644 --- a/drivers/pinctrl/pinctrl-th1520.c +++ b/drivers/pinctrl/pinctrl-th1520.c @@ -417,7 +417,6 @@ static int th1520_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, unsigned int *num_maps) { struct th1520_pinctrl *thp = pinctrl_dev_get_drvdata(pctldev); - struct device_node *child; struct pinctrl_map *map; unsigned long *configs; unsigned int nconfigs; @@ -425,11 +424,10 @@ static int th1520_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, int ret; nmaps = 0; - for_each_available_child_of_node(np, child) { + for_each_available_child_of_node_scoped(np, child) { int npins = of_property_count_strings(child, "pins"); if (npins <= 0) { - of_node_put(child); dev_err(thp->pctl->dev, "no pins selected for %pOFn.%pOFn\n", np, child); return -EINVAL; @@ -445,7 +443,7 @@ static int th1520_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, nmaps = 0; guard(mutex)(&thp->mutex); - for_each_available_child_of_node(np, child) { + for_each_available_child_of_node_scoped(np, child) { unsigned int rollback = nmaps; enum th1520_muxtype muxtype; struct property *prop; @@ -458,7 +456,7 @@ static int th1520_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, if (ret) { dev_err(thp->pctl->dev, "%pOFn.%pOFn: error parsing pin config\n", np, child); - goto put_child; + goto free_map; } if (!of_property_read_string(child, "function", &funcname)) { @@ -524,7 +522,7 @@ static int th1520_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, npins, (void *)muxtype); if (ret < 0) { dev_err(thp->pctl->dev, "error adding function %s\n", funcname); - goto put_child; + goto free_map; } } } @@ -535,8 +533,7 @@ static int th1520_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, free_configs: kfree(configs); -put_child: - of_node_put(child); +free_map: th1520_pinctrl_dt_free_map(pctldev, map, nmaps); return ret; }