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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	linux-kernel@vger.kernel.org
Cc: Andy Shevchenko <andy@kernel.org>, Lee Jones <lee.jones@linaro.org>
Subject: [PATCH v1 09/11] mfd: intel_soc_pmic_bxtwc: Use sysfs_emit() instead of sprintf()
Date: Thu, 16 Jun 2022 19:58:21 +0300	[thread overview]
Message-ID: <20220616165823.4919-9-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20220616165823.4919-1-andriy.shevchenko@linux.intel.com>

sysfs_emit() is preferred over sprintf() when formatting the value to be
returned to user space in show() functions, because it knows about sysfs
buffer specifics and has sanity checks.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/mfd/intel_soc_pmic_bxtwc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/intel_soc_pmic_bxtwc.c b/drivers/mfd/intel_soc_pmic_bxtwc.c
index 529aec38389c..4e890f095721 100644
--- a/drivers/mfd/intel_soc_pmic_bxtwc.c
+++ b/drivers/mfd/intel_soc_pmic_bxtwc.c
@@ -334,7 +334,7 @@ static unsigned long bxtwc_reg_addr;
 static ssize_t addr_show(struct device *dev,
 			 struct device_attribute *attr, char *buf)
 {
-	return sprintf(buf, "0x%lx\n", bxtwc_reg_addr);
+	return sysfs_emit(buf, "0x%lx\n", bxtwc_reg_addr);
 }
 
 static ssize_t addr_store(struct device *dev,
@@ -364,7 +364,7 @@ static ssize_t val_show(struct device *dev,
 		return ret;
 	}
 
-	return sprintf(buf, "0x%02x\n", val);
+	return sysfs_emit(buf, "0x%02x\n", val);
 }
 
 static ssize_t val_store(struct device *dev,
-- 
2.35.1


  parent reply	other threads:[~2022-06-16 16:59 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-16 16:58 [PATCH v1 01/11] mfd: intel_soc_pmic_bxtwc: Don't shadow error codes in show()/store() Andy Shevchenko
2022-06-16 16:58 ` [PATCH v1 02/11] mfd: intel_soc_pmic_bxtwc: Create sysfs attributes using core driver's facility Andy Shevchenko
2022-06-27  9:07   ` Lee Jones
2022-06-16 16:58 ` [PATCH v1 03/11] mfd: intel_soc_pmic_bxtwc: Convert to use platform_get/set_drvdata() Andy Shevchenko
2022-06-27  9:08   ` Lee Jones
2022-06-16 16:58 ` [PATCH v1 04/11] mfd: intel_soc_pmic_bxtwc: Use dev_err_probe() Andy Shevchenko
2022-06-27  9:22   ` Lee Jones
2022-06-16 16:58 ` [PATCH v1 05/11] mfd: intel_soc_pmic_bxtwc: Extend use of temporary variable for struct device Andy Shevchenko
2022-06-27  9:27   ` Lee Jones
2022-06-16 16:58 ` [PATCH v1 06/11] mfd: intel_soc_pmic_bxtwc: Switch from CONFIG_PM_SLEEP guards to pm_sleep_ptr() etc Andy Shevchenko
2022-06-27  9:27   ` Lee Jones
2022-06-16 16:58 ` [PATCH v1 07/11] mfd: intel_soc_pmic_bxtwc: Drop redundant ACPI_PTR() Andy Shevchenko
2022-06-27  9:28   ` Lee Jones
2022-06-16 16:58 ` [PATCH v1 08/11] mfd: intel_soc_pmic_bxtwc: Use bits.h macros for all masks Andy Shevchenko
2022-06-27  9:30   ` Lee Jones
2022-06-16 16:58 ` Andy Shevchenko [this message]
2022-06-27  9:30   ` [PATCH v1 09/11] mfd: intel_soc_pmic_bxtwc: Use sysfs_emit() instead of sprintf() Lee Jones
2022-06-16 16:58 ` [PATCH v1 10/11] mfd: intel_soc_pmic_bxtwc: Drop unneeded casting Andy Shevchenko
2022-06-27  9:31   ` Lee Jones
2022-06-16 16:58 ` [PATCH v1 11/11] mfd: intel_soc_pmic_bxtwc: Fix spelling in the comment Andy Shevchenko
2022-06-27  9:33   ` Lee Jones
2022-06-28  9:38     ` Andy Shevchenko
2022-06-28  9:56       ` Lee Jones
2022-06-28 10:36         ` Andy Shevchenko
2022-06-27  9:05 ` [PATCH v1 01/11] mfd: intel_soc_pmic_bxtwc: Don't shadow error codes in show()/store() Lee Jones
2022-06-28  9:45   ` Andy Shevchenko
2022-06-28  9:47     ` Lee Jones
2022-06-28 10:38       ` Andy Shevchenko
2022-06-29 14:34         ` Lee Jones

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