The debugfs_create_dir() function returns error pointers. It never returns NULL. So use IS_ERR() to check it. Signed-off-by: Yang Ruibin <11162571@xxxxxxxx> --- drivers/iio/industrialio-backend.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-backend.c index a52a6b61c8b5..20b3b5212da7 100644 --- a/drivers/iio/industrialio-backend.c +++ b/drivers/iio/industrialio-backend.c @@ -219,7 +219,7 @@ void iio_backend_debugfs_add(struct iio_backend *back, snprintf(name, sizeof(name), "backend%d", back->idx); back_d = debugfs_create_dir(name, d); - if (!back_d) + if (IS_ERR(back_d)) return; if (back->ops->debugfs_reg_access) -- 2.34.1
