1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c
index 874ff32db366..00cfed3c3e1a 100644
--- a/drivers/firmware/ti_sci.c
+++ b/drivers/firmware/ti_sci.c
@@ -202,7 +202,8 @@ static int ti_sci_debugfs_create(struct platform_device *pdev,
         info->debug_buffer[info->debug_region_size] = 0;
 
         info->d = debugfs_create_file(strncat(debug_name, dev_name(dev),
-                                              sizeof(debug_name)),
+                                              sizeof(debug_name) -
+                                              sizeof("ti_sci_debug@")),
                                       0444, NULL, info, &ti_sci_debug_fops);
         if (IS_ERR(info->d))
                 return PTR_ERR(info->d);