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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Nuno Sa <nuno.sa@analog.com>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>,
	Sasha Levin <sashal@kernel.org>,
	jic23@kernel.org, linux-iio@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 06/14] iio: core: Use min() instead of min_t() to make code more robust
Date: Fri,  8 Sep 2023 20:40:37 -0400	[thread overview]
Message-ID: <20230909004045.3581014-6-sashal@kernel.org> (raw)
In-Reply-To: <20230909004045.3581014-1-sashal@kernel.org>

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

[ Upstream commit cb1d17535061ca295903f97f5cb0af9db719c02c ]

min() has strict type checking and preferred over min_t() for
unsigned types to avoid overflow. Here it's unclear why min_t()
was chosen since both variables are of the same type. In any
case update to use min().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20230721170022.3461-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/industrialio-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 49d4b4f1a4574..ad9bd2001fbd2 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -323,7 +323,7 @@ static ssize_t iio_debugfs_write_reg(struct file *file,
 	char buf[80];
 	int ret;
 
-	count = min_t(size_t, count, (sizeof(buf)-1));
+	count = min(count, sizeof(buf) - 1);
 	if (copy_from_user(buf, userbuf, count))
 		return -EFAULT;
 
-- 
2.40.1


  parent reply	other threads:[~2023-09-09  0:45 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-09  0:40 [PATCH AUTOSEL 4.19 01/14] media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer Sasha Levin
2023-09-09  0:40 ` [PATCH AUTOSEL 4.19 02/14] media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer() Sasha Levin
2023-09-09  0:40 ` [PATCH AUTOSEL 4.19 03/14] media: af9005: Fix null-ptr-deref in af9005_i2c_xfer Sasha Levin
2023-09-09  0:40 ` [PATCH AUTOSEL 4.19 04/14] media: anysee: fix null-ptr-deref in anysee_master_xfer Sasha Levin
2023-09-09  0:40 ` [PATCH AUTOSEL 4.19 05/14] media: az6007: Fix null-ptr-deref in az6007_i2c_xfer() Sasha Levin
2023-09-09  0:40 ` Sasha Levin [this message]
2023-09-09  0:40 ` [PATCH AUTOSEL 4.19 07/14] media: tuners: qt1010: replace BUG_ON with a regular error Sasha Levin
2023-09-09  0:40 ` [PATCH AUTOSEL 4.19 08/14] media: pci: cx23885: replace BUG with error return Sasha Levin
2023-09-09  0:40 ` [PATCH AUTOSEL 4.19 09/14] usb: gadget: fsl_qe_udc: validate endpoint index for ch9 udc Sasha Levin
2023-09-09  0:40 ` [PATCH AUTOSEL 4.19 10/14] scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() Sasha Levin
2023-09-09  0:40 ` [PATCH AUTOSEL 4.19 11/14] serial: cpm_uart: Avoid suspicious locking Sasha Levin
2023-09-09  0:40 ` [PATCH AUTOSEL 4.19 12/14] workqueue: Call wq_update_unbound_numa() on all CPUs in NUMA node on CPU hotplug Sasha Levin
2023-09-11  9:57   ` Pavel Machek
2023-09-09  0:40 ` [PATCH AUTOSEL 4.19 13/14] media: pci: ipu3-cio2: Initialise timing struct to avoid a compiler warning Sasha Levin
2023-09-09  0:40 ` [PATCH AUTOSEL 4.19 14/14] kobject: Add sanity check for kset->kobj.ktype in kset_register() Sasha Levin

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