[PATCH] dma-buf: use strscpy() is more robust and safer

From: cgel . zte
Date: Fri Sep 16 2022 - 02:32:02 EST


From: Minghao Chi <chi.minghao@xxxxxxxxxx>

The implementation of strscpy() is more robust and safer.

That's now the recommended way to copy NUL terminated strings.

Signed-off-by: Minghao Chi <chi.minghao@xxxxxxxxxx>
---
drivers/dma-buf/dma-buf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index dd0f83ee505b..51cdd4060539 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -50,7 +50,7 @@ static char *dmabuffs_dname(struct dentry *dentry, char *buffer, int buflen)
dmabuf = dentry->d_fsdata;
spin_lock(&dmabuf->name_lock);
if (dmabuf->name)
- ret = strlcpy(name, dmabuf->name, DMA_BUF_NAME_LEN);
+ ret = strscpy(name, dmabuf->name, DMA_BUF_NAME_LEN);
spin_unlock(&dmabuf->name_lock);

return dynamic_dname(buffer, buflen, "/%s:%s",
--
2.25.1