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uacce: use sysfs_emit instead of sprintf

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Use the sysfs_emit to replace sprintf. sprintf may cause
output defect in sysfs content, it is better to use new
added sysfs_emit function which knows the size of the
temporary buffer.

Signed-off-by: Kai Ye <yekai13@huawei.com>
Link: https://lore.kernel.org/r/20211206104724.11559-1-yekai13@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kai Ye 2021-12-06 18:47:24 +08:00 • committed by Greg Kroah-Hartman
parent 909c648e03
commit 2d2802fb24
1 changed files with 6 additions and 6 deletions
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12
drivers/misc/uacce/uacce.c
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@ -289,7 +289,7 @@ static ssize_t api_show(struct device *dev,
{
struct uacce_device *uacce = to_uacce_device(dev);
return sprintf(buf, "%s\n", uacce->api_ver);
return sysfs_emit(buf, "%s\n", uacce->api_ver);
}
static ssize_t flags_show(struct device *dev,
@ -297,7 +297,7 @@ static ssize_t flags_show(struct device *dev,
{
struct uacce_device *uacce = to_uacce_device(dev);
return sprintf(buf, "%u\n", uacce->flags);
return sysfs_emit(buf, "%u\n", uacce->flags);
}
static ssize_t available_instances_show(struct device *dev,
@ -309,7 +309,7 @@ static ssize_t available_instances_show(struct device *dev,
if (!uacce->ops->get_available_instances)
return -ENODEV;
return sprintf(buf, "%d\n",
return sysfs_emit(buf, "%d\n",
uacce->ops->get_available_instances(uacce));
}
@ -318,7 +318,7 @@ static ssize_t algorithms_show(struct device *dev,
{
struct uacce_device *uacce = to_uacce_device(dev);
return sprintf(buf, "%s\n", uacce->algs);
return sysfs_emit(buf, "%s\n", uacce->algs);
}
static ssize_t region_mmio_size_show(struct device *dev,
@ -326,7 +326,7 @@ static ssize_t region_mmio_size_show(struct device *dev,
{
struct uacce_device *uacce = to_uacce_device(dev);
return sprintf(buf, "%lu\n",
return sysfs_emit(buf, "%lu\n",
uacce->qf_pg_num[UACCE_QFRT_MMIO] << PAGE_SHIFT);
}
@ -335,7 +335,7 @@ static ssize_t region_dus_size_show(struct device *dev,
{
struct uacce_device *uacce = to_uacce_device(dev);
return sprintf(buf, "%lu\n",
return sysfs_emit(buf, "%lu\n",
uacce->qf_pg_num[UACCE_QFRT_DUS] << PAGE_SHIFT);
}