From 27600805e62f800bacf990354632eae4e487d34c Mon Sep 17 00:00:00 2001 From: Yazen Ghannam Date: Thu, 3 Sep 2026 10:43:25 -0500 Subject: x86/amd_node: Fix PCI device reference counting in amd_smn_init() The local "root" pointer is a temporary variable used during the device search. Therefore, refcount related to the search iterators should be cleaned up after the search is complete. Use the __free() cleanup macro to ensure the refcount is decremented when the temporary pointer goes out of scope. Additionally, increment the refcount when caching a root pointer. This ensures the in-use refcount is separate from the temporary search refcounting. Finally, drop the redundant "root = NULL" before the second search loop. The pci_get_class() iterator always decrements the refcount of its "from" argument, so the first loop can only fall through with "root" already NULL. Fixes: 0a4b61d9c2e4 ("x86/amd_node: Fix AMD root device caching") Closes: https://sashiko.dev/#/patchset/20260806160159.230453-1-jason.andryuk%40amd.com Reported-by: Sashiko Assisted-by: LLM Signed-off-by: Yazen Ghannam Signed-off-by: Borislav Petkov (AMD) Reviewed-by: Mario Limonciello (AMD) Cc: Link: https://patch.msgid.link/20260903154325.74343-1-yazen.ghannam@amd.com --- include/sound/soc-link.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 include/sound/soc-link.h (limited to 'include/sound/soc-link.h') diff --git a/include/sound/soc-link.h b/include/sound/soc-link.h new file mode 100644 index 000000000..9314cde17 --- /dev/null +++ b/include/sound/soc-link.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * soc-link.h + * + * Copyright (C) 2019 Renesas Electronics Corp. + * Kuninori Morimoto + */ +#ifndef __SOC_LINK_H +#define __SOC_LINK_H + +int snd_soc_link_init(struct snd_soc_pcm_runtime *rtd); +void snd_soc_link_exit(struct snd_soc_pcm_runtime *rtd); +int snd_soc_link_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params); + +int snd_soc_link_startup(struct snd_pcm_substream *substream); +void snd_soc_link_shutdown(struct snd_pcm_substream *substream, + int rollback); +int snd_soc_link_prepare(struct snd_pcm_substream *substream); +int snd_soc_link_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params); +void snd_soc_link_hw_free(struct snd_pcm_substream *substream, + int rollback); + +int snd_soc_link_trigger(struct snd_pcm_substream *substream, int cmd, + int rollback); +int snd_soc_link_compr_startup(struct snd_compr_stream *cstream); +void snd_soc_link_compr_shutdown(struct snd_compr_stream *cstream, + int rollback); +int snd_soc_link_compr_set_params(struct snd_compr_stream *cstream); + +#endif /* __SOC_LINK_H */ -- cgit v1.3.1