linux/drivers/gpu
Matthew Brost 9e6372ec2a drm/pagemap: dma-unmap pages before handling migration errors
drm_pagemap_migrate_unmap_pages() relies on the pages array to determine
which pages require DMA unmapping. However,
drm_pagemap_migration_unlock_put_pages() clears the array as part of its
cleanup, leaving drm_pagemap_migrate_unmap_pages() with no valid page
information if it is called afterward.

Call drm_pagemap_migrate_unmap_pages() before
drm_pagemap_migration_unlock_put_pages() so the pages array remains
valid during DMA unmapping.

Reported-by: Sashiko <sashiko-bot@kernel.org>
Fixes: f86ad0ed62 ("drm/gpusvm, drm/pagemap: Move migration functionality to drm_pagemap")
Cc: stable@vger.kernel.org
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Link: https://patch.msgid.link/20260902063504.3024362-1-matthew.brost@intel.com
2026-09-02 12:25:31 -07:00
..
drm drm/pagemap: dma-unmap pages before handling migration errors 2026-09-02 12:25:31 -07:00
host1x Linux 7.2 2026-08-20 10:58:44 +10:00
ipu-v3
nova-core drm for 7.3-rc1 2026-08-21 08:41:00 -07:00
tests drm/tests/gpu_buddy: fix interleaving in buffer clearance test 2026-08-06 18:07:10 +05:30
trace
vga
buddy.c Linux 7.2 2026-08-20 10:58:44 +10:00
Kconfig gpu: Fix dependencies in CONFIG_GPU_BUDDY_KUNIT_TEST 2026-07-29 13:06:24 +02:00
Makefile gpu: drm: nova: depend on nova-core and use its symbols 2026-06-29 11:28:39 +02:00