accel/amdxdna: fix open_ref leak and stale client pointer on dma map failure

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amdxdna_gem_obj_open() increments open_ref before attempting to set up
the DMA address mapping.  When amdxdna_dma_map_bo() fails, the function
returned immediately without rolling back either change made on the first
open (open_ref == 1 path).

Fix it by decrementing open_ref and clearing abo->client on the error path.

Fixes: ece3e89809 ("accel/amdxdna: Allow forcing IOVA-based DMA via module parameter")
Reviewed-by: Max Zhen <max.zhen@amd.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260707055658.479049-1-lizhi.hou@amd.com

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Lizhi Hou 2026-07-06 22:56:58 -07:00

parent 14f172eff9

commit 66ff5c0eee

1 changed files with 4 additions and 1 deletions

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drivers/accel/amdxdna/amdxdna_gem.c

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