diff mbox series

[linux-next] blktrace: use strscpy() to instead of strncpy()

Message ID 202301052016131375697@zte.com.cn
State New
Headers
Series [linux-next] blktrace: use strscpy() to instead of strncpy() |

Commit Message

Yang Yang Jan. 5, 2023, 12:16 p.m. UTC 
  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 mbox series

Patch

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