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 --- fs/btrfs/ioctl.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 fs/btrfs/ioctl.h (limited to 'fs/btrfs/ioctl.h') diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h new file mode 100644 index 000000000..ccf6bed9c --- /dev/null +++ b/fs/btrfs/ioctl.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef BTRFS_IOCTL_H +#define BTRFS_IOCTL_H + +#include + +struct file; +struct dentry; +struct mnt_idmap; +struct file_kattr; +struct io_uring_cmd; +struct btrfs_inode; +struct btrfs_fs_info; +struct btrfs_ioctl_balance_args; + +long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg); +long btrfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); +int btrfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa); +int btrfs_fileattr_set(struct mnt_idmap *idmap, + struct dentry *dentry, struct file_kattr *fa); +int btrfs_ioctl_get_supported_features(void __user *arg); +void btrfs_sync_inode_flags_to_i_flags(struct btrfs_inode *inode); +void btrfs_update_ioctl_balance_args(struct btrfs_fs_info *fs_info, + struct btrfs_ioctl_balance_args *bargs); +int btrfs_uring_cmd(struct io_uring_cmd *cmd, unsigned int issue_flags); +void btrfs_uring_read_extent_endio(void *ctx, int err); + +#endif -- cgit v1.3.1