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| author | Mads Bligaard Nielsen <bli@bang-olufsen.dk> | 2024-02-19 23:21:47 +0300 |
|---|---|---|
| committer | Robert Foss <rfoss@kernel.org> | 2024-02-21 18:29:58 +0300 |
| commit | aeedaee5ef5468caf59e2bb1265c2116e0c9a924 (patch) | |
| tree | a85df03e3fbe38035414430fb5052f2d8753af91 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | 1f4c6f11a557642505e5f403e0dfabbaff9c529a (diff) | |
| download | linux-aeedaee5ef5468caf59e2bb1265c2116e0c9a924.tar.xz | |
drm/bridge: adv7511: fix crash on irq during probe
Moved IRQ registration down to end of adv7511_probe().
If an IRQ already is pending during adv7511_probe
(before adv7511_cec_init) then cec_received_msg_ts
could crash using uninitialized data:
Unable to handle kernel read from unreadable memory at virtual address 00000000000003d5
Internal error: Oops: 96000004 [#1] PREEMPT_RT SMP
Call trace:
cec_received_msg_ts+0x48/0x990 [cec]
adv7511_cec_irq_process+0x1cc/0x308 [adv7511]
adv7511_irq_process+0xd8/0x120 [adv7511]
adv7511_irq_handler+0x1c/0x30 [adv7511]
irq_thread_fn+0x30/0xa0
irq_thread+0x14c/0x238
kthread+0x190/0x1a8
Fixes: 3b1b975003e4 ("drm: adv7511/33: add HDMI CEC support")
Signed-off-by: Mads Bligaard Nielsen <bli@bang-olufsen.dk>
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240219-adv7511-cec-irq-crash-fix-v2-1-245e53c4b96f@bang-olufsen.dk
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions