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Check the alignment in posix_memalign() earlier

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Make sure all conditions to do a proper memory allocation are satisfied
before a zero size memory allocation is performed.

Update #4390.
This commit is contained in:
Sebastian Huber
2021-05-06 19:25:09 +02:00
parent b391affc36
commit c46d125569
1 changed files with 4 additions and 4 deletions
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8
cpukit/libcsupport/src/posix_memalign.c
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@@ -37,10 +37,6 @@ int posix_memalign(
*memptr = NULL; *memptr = NULL;
if ( size == 0 ) {
return 0;
}
if ( alignment < sizeof( void * ) ) { if ( alignment < sizeof( void * ) ) {
return EINVAL; return EINVAL;
} }
@@ -49,6 +45,10 @@ int posix_memalign(
return EINVAL; return EINVAL;
} }
if ( size == 0 ) {
return 0;
}
*memptr = rtems_heap_allocate_aligned_with_boundary( size, alignment, 0 ); *memptr = rtems_heap_allocate_aligned_with_boundary( size, alignment, 0 );
if ( *memptr == NULL ) { if ( *memptr == NULL ) {