cxl/hdm: Fix potential infinite loop in __cxl_dpa_reserve()

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[ Upstream commit d4026a4462 ]

In __cxl_dpa_reserve(), it will check if the new resource range is
included in one of paritions of the cxl memory device.
cxlds->nr_paritions is used to represent how many partitions information
the cxl memory device has. In the loop, if driver cannot find a
partition including the new resource range, it will be an infinite loop.

[ dj: Removed incorrect fixes tag ]

Fixes: 991d98f17d ("cxl: Make cxl_dpa_alloc() DPA partition number agnostic")
Signed-off-by: Li Ming <ming.li@zohomail.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://patch.msgid.link/20260112120526.530232-1-ming.li@zohomail.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Li Ming 2026-01-12 20:05:26 +08:00 • committed by Greg Kroah-Hartman

parent 6cb008f1bb

commit 1b3ed6c512

1 changed files with 1 additions and 1 deletions

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drivers/cxl/core/hdm.c

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