* [PATCH linux-next] blktrace: use strscpy() to instead of strncpy()
@ 2023-01-05 12:16 yang.yang29
0 siblings, 0 replies; only message in thread
From: yang.yang29 @ 2023-01-05 12:16 UTC (permalink / raw)
To: axboe
Cc: rostedt, mhiramat, linux-block, linux-kernel, linux-trace-kernel,
xu.panda, yang.yang29
From: Xu Panda <xu.panda@zte.com.cn>
The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL-terminated strings.
Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com.cn>
---
kernel/trace/blktrace.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 918a7d12df8f..ff0cc68d7667 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -524,8 +524,7 @@ static int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
if (!buts->buf_size || !buts->buf_nr)
return -EINVAL;
- strncpy(buts->name, name, BLKTRACE_BDEV_SIZE);
- buts->name[BLKTRACE_BDEV_SIZE - 1] = '\0';
+ strscpy(buts->name, name, BLKTRACE_BDEV_SIZE);
/*
* some device names have larger paths - convert the slashes
--
2.15.2
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2023-01-05 12:16 [PATCH linux-next] blktrace: use strscpy() to instead of strncpy() yang.yang29
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