litmus-rt-ext-res.git - LITMUS^RT with extended reservations for Forbidden Zones paper @ RTAS'20

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author	Dan Carpenter <dan.carpenter@oracle.com>	2017-08-11 16:16:06 -0400
committer	Tomi Valkeinen <tomi.valkeinen@ti.com>	2017-08-16 09:21:18 -0400
commit	2419672f4c96ca678a95d0f733f44d3ee036b5c8 (patch)
tree	12f127f22ffad39fd641287d68b4f7ff8b90faf5 /tools/perf/scripts/python
parent	4161f200ff380b0703c7bfa8df9615cc7fd76ba7 (diff)

drm/omap: Potential NULL deref in omap_crtc_duplicate_state()

If the kmalloc() fails then we dereference "state" when we set "state->zpos". Fixes: 3dfeb631a15d ("drm/omap: Rework the rotation-on-crtc hack") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

Diffstat (limited to 'tools/perf/scripts/python')

0 files changed, 0 insertions, 0 deletions

/* * descriptor table internals; you almost certainly want file.h instead. */ #ifndef __LINUX_FDTABLE_H #define __LINUX_FDTABLE_H #include <linux/posix_types.h> #include <linux/compiler.h> #include <linux/spinlock.h> #include <linux/rcupdate.h> #include <linux/types.h> #include <linux/init.h> #include <asm/atomic.h> /* * The default fd array needs to be at least BITS_PER_LONG, * as this is the granularity returned by copy_fdset(). */ #define NR_OPEN_DEFAULT BITS_PER_LONG /* * The embedded_fd_set is a small fd_set, * suitable for most tasks (which open <= BITS_PER_LONG files) */ struct embedded_fd_set { unsigned long fds_bits[1]; }; struct fdtable { unsigned int max_fds; struct file ** fd; /* current fd array */ fd_set *close_on_exec; fd_set *open_fds; struct rcu_head rcu; struct fdtable *next; }; /* * Open file table structure */ struct files_struct { /* * read mostly part */ atomic_t count; struct fdtable *fdt; struct fdtable fdtab; /* * written part on a separate cache line in SMP */ spinlock_t file_lock ____cacheline_aligned_in_smp; int next_fd; struct embedded_fd_set close_on_exec_init; struct embedded_fd_set open_fds_init; struct file * fd_array[NR_OPEN_DEFAULT]; }; #define rcu_dereference_check_fdtable(files, fdtfd) \ (rcu_dereference_check((fdtfd), \ rcu_read_lock_held() || \ lockdep_is_held(&(files)->file_lock) || \ atomic_read(&(files)->count) == 1)) #define files_fdtable(files) \ (rcu_dereference_check_fdtable((files), (files)->fdt)) struct file_operations; struct vfsmount; struct dentry; extern int expand_files(struct files_struct *, int nr); extern void free_fdtable_rcu(struct rcu_head *rcu); extern void __init files_defer_init(void); static inline void free_fdtable(struct fdtable *fdt) { call_rcu(&fdt->rcu, free_fdtable_rcu); } static inline struct file * fcheck_files(struct files_struct *files, unsigned int fd) { struct file * file = NULL; struct fdtable *fdt = files_fdtable(files); if (fd < fdt->max_fds) file = rcu_dereference_check_fdtable(files, fdt->fd[fd]); return file; } /* * Check whether the specified fd has an open file. */ #define fcheck(fd) fcheck_files(current->files, fd) struct task_struct; struct files_struct *get_files_struct(struct task_struct *); void put_files_struct(struct files_struct *fs); void reset_files_struct(struct files_struct *); int unshare_files(struct files_struct **); struct files_struct *dup_fd(struct files_struct *, int *); extern struct kmem_cache *files_cachep; #endif /* __LINUX_FDTABLE_H */


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