firmware: ti_sci: fix strncat length check

[karo-tx-linux.git] / drivers / firmware / ti_sci.c

diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c
index 874ff32db36668919c50eb6eda3d744327ee5dd6..00cfed3c3e1a20b7bbea4b1a93e59fcd09afc2dd 100644 (file)
--- 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);