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tracing: Fix unload_page for simple_ring_buffer init rollback

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The unload_page callback expects the return value of load_page() as its
argument: ret = load_page(va); unload(ret). Fix the rollback code in
simple_ring_buffer_init_mm() where the descriptor's VA is used instead
of the loaded page address.

Link: https://patch.msgid.link/20260512141614.1759430-1-vdonnefort@google.com
Fixes: 635923081c ("tracing: load/unload page callbacks for simple_ring_buffer")
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Vincent Donnefort 2026-05-12 15:16:14 +01:00 committed by Steven Rostedt
parent c2d2856cf6
commit a0a2f42a37
1 changed files with 1 additions and 1 deletions
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kernel/trace/simple_ring_buffer.c
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@ -430,7 +430,7 @@ int simple_ring_buffer_init_mm(struct simple_rb_per_cpu *cpu_buffer,
if (ret) {
for (i--; i >= 0; i--)
unload_page((void *)desc->page_va[i]);
unload_page(bpages[i].page);
unload_page(cpu_buffer->meta);
return ret;