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([106.219.167.196]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-715e56e5439sm5601098b3a.180.2024.09.01.11.22.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 01 Sep 2024 11:22:51 -0700 (PDT) From: Riyan Dhiman To: ulf.hansson@linaro.org Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Riyan Dhiman Subject: [PATCH] mmc: core: convert simple_stroul to kstroul Date: Sun, 1 Sep 2024 23:52:44 +0530 Message-ID: <20240901182244.45543-1-riyandhiman14@gmail.com> X-Mailer: git-send-email 2.46.0 Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 simple_strtoul() is obsolete and lacks proper error handling, making it unsafe for converting strings to unsigned long values. Replace it with kstrtoul(), which provides robust error checking and better safety. This change improves the reliability of the string-to-integer conversion and aligns with current kernel coding standards. Error handling is added to catch conversion failures, returning -EINVAL when input is invalid. Issue reported by checkpatch: - WARNING: simple_strtoul is obsolete, use kstrtoul instead Signed-off-by: Riyan Dhiman --- drivers/mmc/core/block.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index 2c9963248fcb..140d2b3504b3 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -307,10 +307,10 @@ static ssize_t force_ro_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int ret; - char *end; struct mmc_blk_data *md = mmc_blk_get(dev_to_disk(dev)); - unsigned long set = simple_strtoul(buf, &end, 0); - if (end == buf) { + unsigned long set; + + if (kstrtoul(buf, 0, &set)) { ret = -EINVAL; goto out; }