From c0be3310715e2f744b892c51f09e62273bcc8e57 Mon Sep 17 00:00:00 2001 From: Michal Wajdeczko Date: Mon, 4 Dec 2017 13:02:55 +0000 Subject: tests/kms_frontbuffer_tracking: Correctly handle debugfs errors In commit 3f6ae7b19 ("igt/kms_frontbuffer_tracking: Keep the debugfs dir around") we introduced custom variant of __igt_debugfs_read function that fires assert when debugfs returns an error. Replace that assert with proper error handling to allow use of errors like -ENODEV. v2: allow only -ENODEV (Chris) Signed-off-by: Michal Wajdeczko Cc: Chris Wilson Cc: Joonas Lahtinen Reviewed-by: Chris Wilson --- tests/kms_frontbuffer_tracking.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'tests/kms_frontbuffer_tracking.c') diff --git a/tests/kms_frontbuffer_tracking.c b/tests/kms_frontbuffer_tracking.c index a068c8af..c6586c41 100644 --- a/tests/kms_frontbuffer_tracking.c +++ b/tests/kms_frontbuffer_tracking.c @@ -783,7 +783,10 @@ static bool set_mode_for_params(struct modeset_params *params) static void __debugfs_read(const char *param, char *buf, int len) { len = igt_sysfs_read(drm.debugfs, param, buf, len - 1); - igt_assert(len > 0); + if (len < 0) { + igt_assert_eq(len, -ENODEV); + len = 0; + } buf[len] = '\0'; } -- cgit v1.2.3