Rob Clark 323894610b drm/msm/rd: Fix FIFO-full deadlock
If the previous thing cat'ing $debugfs/rd left the FIFO full, then
subsequent open could deadlock in rd_write() (because open is blocked,
not giving a chance for read() to consume any data in the FIFO).  Also
it is generally a good idea to clear out old data from the FIFO.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/496706/
Link: https://lore.kernel.org/r/20220807160901.2353471-2-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
2022-09-18 09:37:55 -07:00
..
2022-08-11 13:26:09 -07:00
2022-08-20 10:17:05 -07:00
2022-08-04 12:12:54 -07:00
2022-08-04 12:12:54 -07:00
2022-08-06 17:05:21 -07:00
2022-08-04 19:30:35 -07:00
2022-08-04 19:30:35 -07:00
2022-08-03 19:52:08 -07:00
2022-08-06 16:38:17 -07:00
2022-08-04 18:34:05 -07:00
2022-09-18 09:37:55 -07:00
2022-08-04 18:19:14 -07:00
2022-08-05 10:07:23 -07:00
2022-08-18 17:37:22 +02:00
2022-08-18 17:37:22 +02:00
2022-08-04 19:41:09 -07:00
2022-08-06 10:25:16 -07:00
2022-08-05 14:13:45 -07:00
2022-08-20 10:49:02 -07:00
2022-08-12 09:50:34 -07:00
2022-08-13 13:37:36 -07:00
2022-08-04 12:12:54 -07:00
2022-08-03 17:49:38 +02:00
2022-08-04 19:30:35 -07:00
2022-08-19 09:46:11 -07:00
2022-08-04 12:12:54 -07:00
2022-08-04 12:12:54 -07:00
2022-08-16 11:36:38 -07:00
2022-08-05 10:02:33 -07:00
2022-08-09 00:56:41 +02:00
2022-08-20 11:29:01 -07:00
2022-08-13 13:41:48 -07:00
2022-08-06 10:19:51 -07:00
2022-08-16 11:40:15 -07:00
2022-08-13 13:41:48 -07:00
2022-08-13 13:41:48 -07:00
2022-08-08 14:33:41 -06:00
2022-08-12 09:50:34 -07:00
2022-08-08 15:04:04 -07:00
2022-08-14 09:28:54 -07:00
2022-08-04 12:01:42 -07:00