RDMA/mlx5: Fix UMR XLT cleanup on ODP populate failure

Browse source

mlx5r_umr_update_xlt() allocates and DMA maps an XLT buffer with
mlx5r_umr_create_xlt(). The buffer is released by the common cleanup path
through mlx5r_umr_unmap_free_xlt().

After mlx5_odp_populate_xlt() became fallible, its error path returned
directly and skipped that cleanup. This leaks the XLT DMA mapping and
buffer. If the emergency XLT page was used, it also leaves
xlt_emergency_page_mutex locked.

Break out of the loop so execution falls through the existing cleanup path.

Fixes: 1efe8c0670 ("RDMA/core: Convert UMEM ODP DMA mapping to caching IOVA and page linkage")
Signed-off-by: Prathamesh Deshpande <prathameshdeshpande7@gmail.com>
Link: https://patch.msgid.link/20260426132356.22264-1-prathameshdeshpande7@gmail.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

...

This commit is contained in:

Prathamesh Deshpande 2026-04-26 14:23:41 +01:00 • committed by Leon Romanovsky

parent 7de165740c

commit 1eae35b379

1 changed files with 1 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

drivers/infiniband/hw/mlx5/umr.c

View file