diff options
Diffstat (limited to 'nuttx/mm/mm_granalloc.c')
| -rw-r--r-- | nuttx/mm/mm_granalloc.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/nuttx/mm/mm_granalloc.c b/nuttx/mm/mm_granalloc.c index a8802a6c5..0e94d464b 100644 --- a/nuttx/mm/mm_granalloc.c +++ b/nuttx/mm/mm_granalloc.c @@ -93,7 +93,7 @@ static inline void gran_mark_allocated(FAR struct gran_s *priv, uintptr_t alloc, ngranules -= avail; } - /* Handle the cae where where all of the granules come from one entry */ + /* Handle the case where where all of the granules come from one entry */ else { @@ -135,8 +135,13 @@ static inline FAR void *gran_common_alloc(FAR struct gran_s *priv, size_t size) int j; DEBUGASSERT(priv && size <= 32 * (1 << priv->log2gran)); + if (priv && size > 0) { + /* Get exclusive access to the GAT */ + + gran_semtake(priv); + /* How many contiguous granules we we need to find? */ tmpmask = (1 << priv->log2gran) - 1; @@ -186,6 +191,7 @@ static inline FAR void *gran_common_alloc(FAR struct gran_s *priv, size_t size) /* And return the allocation address */ + gran_semgive(priv); return (FAR void *)alloc; } @@ -207,6 +213,7 @@ static inline FAR void *gran_common_alloc(FAR struct gran_s *priv, size_t size) } } + gran_semgive(priv); return NULL; } |