accel/amdxdna: Fix memory leak in amdxdna_iommu_alloc()

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In amdxdna_iommu_alloc(), if iommu_map() fails after successfully
allocating both iova and cpu_addr, the code jumps to free_iova
which only frees the iova, leaking the allocated pages.

Fixes: ece3e89809 ("accel/amdxdna: Allow forcing IOVA-based DMA via module parameter")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Reviewed-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260416-amdxdna-v1-1-30c13008365c@gmail.com

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Felix Gu 2026-04-16 21:37:23 +08:00 • committed by Lizhi Hou

parent 6771275b4c

commit 432fafdc9a

1 changed files with 3 additions and 1 deletions

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drivers/accel/amdxdna/amdxdna_iommu.c

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