i2c: sun6i-pw2i: Prefer strscpy over strlcpy

strlcpy() reads the entire source buffer first. This read may exceed the
destination size limit. This is both inefficient and can lead to linear
read overflows if a source string is not NUL-terminated. The safe
replacement is strscpy().

This is a previous step in the path to remove the strlcpy() function
entirely from the kernel [1].

[1] https://github.com/KSPP/linux/issues/89

Signed-off-by: Len Baker <len.baker@gmx.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This commit is contained in:
Len Baker 2021-08-17 18:58:59 +02:00 committed by Wolfram Sang
parent e517992bbc
commit e47a0ced40
1 changed files with 1 additions and 1 deletions

View File

@ -234,7 +234,7 @@ static int p2wi_probe(struct platform_device *pdev)
if (IS_ERR(p2wi->regs))
return PTR_ERR(p2wi->regs);
strlcpy(p2wi->adapter.name, pdev->name, sizeof(p2wi->adapter.name));
strscpy(p2wi->adapter.name, pdev->name, sizeof(p2wi->adapter.name));
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;