[PATCH i-g-t v2 2/9] tests/msm/msm_recovery: Wait for devcore

[Rob Clark]

The devcore could take some time to show up, so add a igt_wait() with
timeout so we don't fail the test if the devcore is not immediately
available.

This addresses a source of flakeyness.

Signed-off-by: Rob Clark <rob.clark at oss.qualcomm.com>
---
 tests/msm/msm_recovery.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tests/msm/msm_recovery.c b/tests/msm/msm_recovery.c
index fbe26e687ed3..433392079bd4 100644
--- a/tests/msm/msm_recovery.c
+++ b/tests/msm/msm_recovery.c
@@ -44,8 +44,12 @@ read_and_clear_devcore(void)
 	glob_t glob_buf = {0};
 	int ret, fd;
 
-	ret = glob("/sys/class/devcoredump/devcd*/data", GLOB_NOSORT, NULL, &glob_buf);
-	if ((ret == GLOB_NOMATCH) || !glob_buf.gl_pathc)
+	/* The devcore shows up asynchronously, so it might not be
+	 * immediately available:
+	 */
+	if (!igt_wait(glob("/sys/class/devcoredump/devcd*/data",
+			   GLOB_NOSORT, NULL, &glob_buf) != GLOB_NOMATCH,
+		      1000, 100))
 		return;
 
 	fd = open(glob_buf.gl_pathv[0], O_RDWR);
-- 
2.50.0