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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/power/raspberrypi-power.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/power/raspberrypi-power.h')
| -rw-r--r-- | include/dt-bindings/power/raspberrypi-power.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/dt-bindings/power/raspberrypi-power.h b/include/dt-bindings/power/raspberrypi-power.h new file mode 100644 index 000000000..3575f9f4b --- /dev/null +++ b/include/dt-bindings/power/raspberrypi-power.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright © 2015 Broadcom + */ + +#ifndef _DT_BINDINGS_ARM_BCM2835_RPI_POWER_H +#define _DT_BINDINGS_ARM_BCM2835_RPI_POWER_H + +/* These power domain indices are the firmware interface's indices + * minus one. + */ +#define RPI_POWER_DOMAIN_I2C0 0 +#define RPI_POWER_DOMAIN_I2C1 1 +#define RPI_POWER_DOMAIN_I2C2 2 +#define RPI_POWER_DOMAIN_VIDEO_SCALER 3 +#define RPI_POWER_DOMAIN_VPU1 4 +#define RPI_POWER_DOMAIN_HDMI 5 +#define RPI_POWER_DOMAIN_USB 6 +#define RPI_POWER_DOMAIN_VEC 7 +#define RPI_POWER_DOMAIN_JPEG 8 +#define RPI_POWER_DOMAIN_H264 9 +#define RPI_POWER_DOMAIN_V3D 10 +#define RPI_POWER_DOMAIN_ISP 11 +#define RPI_POWER_DOMAIN_UNICAM0 12 +#define RPI_POWER_DOMAIN_UNICAM1 13 +#define RPI_POWER_DOMAIN_CCP2RX 14 +#define RPI_POWER_DOMAIN_CSI2 15 +#define RPI_POWER_DOMAIN_CPI 16 +#define RPI_POWER_DOMAIN_DSI0 17 +#define RPI_POWER_DOMAIN_DSI1 18 +#define RPI_POWER_DOMAIN_TRANSPOSER 19 +#define RPI_POWER_DOMAIN_CCP2TX 20 +#define RPI_POWER_DOMAIN_CDP 21 +#define RPI_POWER_DOMAIN_ARM 22 + +#define RPI_POWER_DOMAIN_COUNT 23 + +#endif /* _DT_BINDINGS_ARM_BCM2835_RPI_POWER_H */ |