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Some of the atomic_clear_* functions were incorrectly defined to be an

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atomic add. Correct these, fixing a NULL-pointer dereference in netgraph.

PR:		220273
MFC after:	3 days
Sponsored by:	DARPA, AFRL
This commit is contained in:
Andrew Turner 2017-06-27 10:45:13 +00:00
parent c45beed8da
commit c90baf6817
1 changed files with 4 additions and 3 deletions
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7
sys/arm64/include/atomic.h
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@ -385,7 +385,7 @@ atomic_store_rel_64(volatile uint64_t *p, uint64_t val)
#define atomic_add_rel_int atomic_add_rel_32
#define atomic_fcmpset_rel_int atomic_fcmpset_rel_32
#define atomic_clear_rel_int atomic_add_rel_32
#define atomic_clear_rel_int atomic_clear_rel_32
#define atomic_cmpset_rel_int atomic_cmpset_rel_32
#define atomic_set_rel_int atomic_set_rel_32
#define atomic_subtract_rel_int atomic_subtract_rel_32
@ -413,7 +413,7 @@ atomic_store_rel_64(volatile uint64_t *p, uint64_t val)
#define atomic_add_acq_long atomic_add_acq_64
#define atomic_fcmpset_acq_long atomic_fcmpset_acq_64
#define atomic_clear_acq_long atomic_add_acq_64
#define atomic_clear_acq_long atomic_clear_acq_64
#define atomic_cmpset_acq_long atomic_cmpset_acq_64
#define atomic_load_acq_long atomic_load_acq_64
#define atomic_set_acq_long atomic_set_acq_64
@ -421,7 +421,7 @@ atomic_store_rel_64(volatile uint64_t *p, uint64_t val)
#define atomic_add_acq_ptr atomic_add_acq_64
#define atomic_fcmpset_acq_ptr atomic_fcmpset_acq_64
#define atomic_clear_acq_ptr atomic_add_acq_64
#define atomic_clear_acq_ptr atomic_clear_acq_64
#define atomic_cmpset_acq_ptr atomic_cmpset_acq_64
#define atomic_load_acq_ptr atomic_load_acq_64
#define atomic_set_acq_ptr atomic_set_acq_64
@ -448,6 +448,7 @@ atomic_thread_fence_acq(void)
{
dmb(ld);
}
static __inline void