drm/panic: Return from screen_user if display is too small

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Return an error if the display is too small to display at least a
single character. If the panic handler cannot display any message
it does at least not destroy the current output, which might help
with identifying the problem.

v4:
- also check font height against scanout buffer (Jocelyn)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260911124540.279841-8-tzimmermann@suse.de

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Thomas Zimmermann 2026-09-11 14:44:00 +02:00

parent f57d778a7a

commit fbe42fd8cf

1 changed files with 2 additions and 2 deletions

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4

drivers/gpu/drm/drm_panic.c

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