igt_sysfs_get() only returns NULL if the open() fails, and a valid string otherwise. So if the read() fails with ENODEV (because sysfs doesn't provide the driver with an ->open() callback), we return an empty string, and "No error captured" otherwise.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109481 Signed-off-by: Chris Wilson <[email protected]> --- tests/i915/gem_exec_capture.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/tests/i915/gem_exec_capture.c b/tests/i915/gem_exec_capture.c index eca73ab11..56837dfca 100644 --- a/tests/i915/gem_exec_capture.c +++ b/tests/i915/gem_exec_capture.c @@ -519,6 +519,11 @@ static bool has_capture(int fd) return async > 0; } +static size_t safer_strlen(const char *s) +{ + return s ? strlen(s) : 0; +} + igt_main { const struct intel_execution_engine *e; @@ -544,7 +549,7 @@ igt_main dir = igt_sysfs_open(fd, NULL); igt_require(igt_sysfs_set(dir, "error", "Begone!")); - igt_require(igt_sysfs_get(dir, "error")); + igt_require(safer_strlen(igt_sysfs_get(dir, "error")) > 0); } for (e = intel_execution_engines; e->name; e++) { -- 2.20.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
