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| author | Yazen Ghannam <yazen.ghannam@amd.com> | 2026-09-03 10:43:25 -0500 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2026-09-10 18:05:43 -0700 |
| commit | 27600805e62f800bacf990354632eae4e487d34c (patch) | |
| tree | e8aec0ddfaa0bc264d79af632e3de3f1b75ae4c8 /include/dt-bindings/pinctrl/pinctrl-tegra.h | |
| download | linux-stable-27600805e62f800bacf990354632eae4e487d34c.tar.gz linux-stable-27600805e62f800bacf990354632eae4e487d34c.zip | |
x86/amd_node: Fix PCI device reference counting in amd_smn_init()grafted
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 <sashiko-bot@kernel.org>
Assisted-by: LLM
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Cc: <stable@kernel.org>
Link: https://patch.msgid.link/20260903154325.74343-1-yazen.ghannam@amd.com
Diffstat (limited to 'include/dt-bindings/pinctrl/pinctrl-tegra.h')
| -rw-r--r-- | include/dt-bindings/pinctrl/pinctrl-tegra.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/include/dt-bindings/pinctrl/pinctrl-tegra.h b/include/dt-bindings/pinctrl/pinctrl-tegra.h new file mode 100644 index 000000000..d9b18bf26 --- /dev/null +++ b/include/dt-bindings/pinctrl/pinctrl-tegra.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * This header provides constants for Tegra pinctrl bindings. + * + * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved. + * + * Author: Laxman Dewangan <ldewangan@nvidia.com> + */ + +#ifndef _DT_BINDINGS_PINCTRL_TEGRA_H +#define _DT_BINDINGS_PINCTRL_TEGRA_H + +/* + * Enable/disable for diffeent dt properties. This is applicable for + * properties nvidia,enable-input, nvidia,tristate, nvidia,open-drain, + * nvidia,lock, nvidia,rcv-sel, nvidia,high-speed-mode, nvidia,schmitt. + */ +#define TEGRA_PIN_DISABLE 0 +#define TEGRA_PIN_ENABLE 1 + +#define TEGRA_PIN_PULL_NONE 0 +#define TEGRA_PIN_PULL_DOWN 1 +#define TEGRA_PIN_PULL_UP 2 + +/* Low power mode driver */ +#define TEGRA_PIN_LP_DRIVE_DIV_8 0 +#define TEGRA_PIN_LP_DRIVE_DIV_4 1 +#define TEGRA_PIN_LP_DRIVE_DIV_2 2 +#define TEGRA_PIN_LP_DRIVE_DIV_1 3 + +/* Rising/Falling slew rate */ +#define TEGRA_PIN_SLEW_RATE_FASTEST 0 +#define TEGRA_PIN_SLEW_RATE_FAST 1 +#define TEGRA_PIN_SLEW_RATE_SLOW 2 +#define TEGRA_PIN_SLEW_RATE_SLOWEST 3 + +#endif |