From: Bill Wendling isanbard@gmail.com
When compiling with -Wformat, clang emits the following warnings:
mm/backing-dev.c:880:57: error: format string is not a string literal (potentially insecure) [-Werror,-Wformat-security] dev = device_create(bdi_class, NULL, MKDEV(0, 0), bdi, bdi->dev_name); ^~~~~~~~~~~~~
Use a string literal for the format string.
Link: https://github.com/ClangBuiltLinux/linux/issues/378 Signed-off-by: Bill Wendling isanbard@gmail.com --- mm/backing-dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/backing-dev.c b/mm/backing-dev.c index ff60bd7d74e0..7b7786dceff3 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -877,7 +877,7 @@ int bdi_register_va(struct backing_dev_info *bdi, const char *fmt, va_list args) return 0;
vsnprintf(bdi->dev_name, sizeof(bdi->dev_name), fmt, args); - dev = device_create(bdi_class, NULL, MKDEV(0, 0), bdi, bdi->dev_name); + dev = device_create(bdi_class, NULL, MKDEV(0, 0), bdi, "%s", bdi->dev_name); if (IS_ERR(dev)) return PTR_ERR(dev);