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[23.88.128.2]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7dc975034f2sm6979077a34.4.2026.04.19.15.36.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Apr 2026 15:36:31 -0700 (PDT) From: Maxwell Doose To: linusw@kernel.org, alexandre.belloni@bootlin.com Cc: linux-arm-kernel@lists.infradead.org, linux-rtc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] rtc: ab8500: replace sprintf() with sysfs_emit() Date: Sun, 19 Apr 2026 17:36:30 -0500 Message-ID: <20260419223630.67644-1-m32285159@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This patch replaces sprintf() with sysfs_emit() to ensure proper bounds checking. It also simplifies the return logic by directly returning the error after logging, instead of logging, calling sprintf(), then returning. Signed-off-by: Maxwell Doose Reviewed-by: Linus Walleij --- drivers/rtc/rtc-ab8500.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/rtc/rtc-ab8500.c b/drivers/rtc/rtc-ab8500.c index ed2b6b8bb3bf..c6147837f957 100644 --- a/drivers/rtc/rtc-ab8500.c +++ b/drivers/rtc/rtc-ab8500.c @@ -284,11 +284,10 @@ static ssize_t ab8500_sysfs_show_rtc_calibration(stru= ct device *dev, retval =3D ab8500_rtc_get_calibration(dev, &calibration); if (retval < 0) { dev_err(dev, "Failed to read RTC calibration attribute\n"); - sprintf(buf, "0\n"); return retval; } =20 - return sprintf(buf, "%d\n", calibration); + return sysfs_emit(buf, "%d\n", calibration); } =20 static DEVICE_ATTR(rtc_calibration, S_IRUGO | S_IWUSR, --=20 2.53.0