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Fix qemu_malloc. 

make {linux,bsd}-user qemu_realloc handle ptr == NULL correctly.
spotted by malc.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6466 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
malc 2009-01-28 17:16:56 +00:00
parent 480b9f24d7
commit baa8c60229
2 changed files with 4 additions and 0 deletions
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2
bsd-user/mmap.c
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@ -127,6 +127,8 @@ void *qemu_realloc(void *ptr, size_t size)
size_t old_size, copy;
void *new_ptr;
if (!ptr)
return qemu_malloc(size);
old_size = *(size_t *)((char *)ptr - 16);
copy = old_size < size ? old_size : size;
new_ptr = qemu_malloc(size);

2
linux-user/mmap.c
View File

@ -128,6 +128,8 @@ void *qemu_realloc(void *ptr, size_t size)
size_t old_size, copy;
void *new_ptr;
if (!ptr)
return qemu_malloc(size);
old_size = *(size_t *)((char *)ptr - 16);
copy = old_size < size ? old_size : size;
new_ptr = qemu_malloc(size);