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memp.c: Only check for overflow/underflow if an element could be allocated

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In other words: Don't dereference NULL pointers
This commit is contained in:
Dirk Ziegelmeier 2016-11-16 20:15:51 +01:00
parent f79eabd24b
commit b99b7577fc
1 changed files with 5 additions and 5 deletions
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10
src/core/memp.c
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@ -301,15 +301,15 @@ do_memp_malloc_pool_fn(const struct memp_desc *desc, const char* file, const int
SYS_ARCH_PROTECT(old_level);
memp = *desc->tab;
#if MEMP_OVERFLOW_CHECK == 1
memp_overflow_check_element_overflow(memp, desc);
memp_overflow_check_element_underflow(memp, desc);
#endif /* MEMP_OVERFLOW_CHECK */
#endif /* MEMP_MEM_MALLOC */
if (memp != NULL) {
#if !MEMP_MEM_MALLOC
#if MEMP_OVERFLOW_CHECK == 1
memp_overflow_check_element_overflow(memp, desc);
memp_overflow_check_element_underflow(memp, desc);
#endif /* MEMP_OVERFLOW_CHECK */
*desc->tab = memp->next;
#if MEMP_OVERFLOW_CHECK
memp->next = NULL;