PM: hibernate: Fix memory leak in snapshot_write_next() error path

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When memory_bm_create() succeeds for copy_bm but fails for zero_bm,
the function returns without freeing the resources allocated for
copy_bm. This results in a memory leak that includes radix tree nodes,
zone structures, and page lists.

Fix this by calling memory_bm_free() to release copy_bm's resources
before returning the error code when zero_bm allocation fails.

Fixes: 005e8dddd4 ("PM: hibernate: don't store zero pages in the image file")
Signed-off-by: Malaya Kumar Rout <malayarout91@gmail.com>
Acked-by: Brian Geffon <bgeffon@google.com>
Link: https://patch.msgid.link/20260711145246.8625-1-malayarout91@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Malaya Kumar Rout 2026-07-11 20:22:45 +05:30 • committed by Rafael J. Wysocki

parent 45a7c1077b

commit 21d5c4cee3

1 changed files with 3 additions and 2 deletions

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kernel/power/snapshot.c

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