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MALLOC(9): Return valid pointer for malloc(0), etc.

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This commit is contained in:
Sebastian Huber 2013-10-30 14:41:44 +01:00
parent f0d189ca93
commit 9fd69c14ab
1 changed files with 3 additions and 3 deletions
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6
rtemsbsd/rtems/rtems-bsd-malloc.c
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@ -74,7 +74,7 @@ malloc_uninit(void *data)
void * void *
_bsd_malloc(unsigned long size, struct malloc_type *mtp, int flags) _bsd_malloc(unsigned long size, struct malloc_type *mtp, int flags)
{ {
void *p = malloc(size); void *p = malloc(size > 0 ? size : 1);
if ((flags & M_ZERO) != 0 && p != NULL) { if ((flags & M_ZERO) != 0 && p != NULL) {
memset(p, 0, size); memset(p, 0, size);
@ -88,7 +88,7 @@ void *
_bsd_realloc( void *addr, unsigned long size, _bsd_realloc( void *addr, unsigned long size,
struct malloc_type *type, int flags) struct malloc_type *type, int flags)
{ {
void *p = realloc(addr, size); void *p = realloc(addr, size > 0 ? size : 1);
if ((flags & M_ZERO) != 0 && p != NULL) { if ((flags & M_ZERO) != 0 && p != NULL) {
memset(p, 0, size); memset(p, 0, size);
@ -102,7 +102,7 @@ void *
_bsd_reallocf( void *addr, unsigned long size, _bsd_reallocf( void *addr, unsigned long size,
struct malloc_type *type, int flags) struct malloc_type *type, int flags)
{ {
void *p = realloc(addr, size); void *p = realloc(addr, size > 0 ? size : 1);
if (p == NULL) { if (p == NULL) {
free(addr,NULL); free(addr,NULL);