[U-Boot] [PATCH] malloc: Fix memalign not honoring alignment prior to full malloc init

[Andreas Dannenberg]

When using memalign() in a scenario where U-Boot is configured for full
malloc support with simple malloc not explicitly enabled and before the
full malloc support is initialized, a memory block is being allocated
and returned without the alignment parameter getting honored.

Fix this issue by replacing the existing memalign pre-full malloc init
logic with a call to memalign_simple() this way ensuring proper alignment
of the returned memory block.

Fixes: ee038c58d519 ("malloc: Use malloc simple before malloc is fully initialized in memalign()")
Signed-off-by: Andreas Dannenberg <dannenberg at ti.com>
---
 common/dlmalloc.c | 3 +--
 include/malloc.h  | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/common/dlmalloc.c b/common/dlmalloc.c
index edaad299bb..6f12a18d54 100644
--- a/common/dlmalloc.c
+++ b/common/dlmalloc.c
@@ -1893,8 +1893,7 @@ Void_t* mEMALIGn(alignment, bytes) size_t alignment; size_t bytes;
 
 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
 	if (!(gd->flags & GD_FLG_FULL_MALLOC_INIT)) {
-		nb = roundup(bytes, alignment);
-		return malloc_simple(nb);
+		return memalign_simple(alignment, bytes);
 	}
 #endif
 
diff --git a/include/malloc.h b/include/malloc.h
index b714fedf45..5efa6920b2 100644
--- a/include/malloc.h
+++ b/include/malloc.h
@@ -878,7 +878,6 @@ extern Void_t*     sbrk();
 #define memalign memalign_simple
 static inline void free(void *ptr) {}
 void *calloc(size_t nmemb, size_t size);
-void *memalign_simple(size_t alignment, size_t bytes);
 void *realloc_simple(void *ptr, size_t size);
 void malloc_simple_info(void);
 #else
@@ -914,6 +913,7 @@ int initf_malloc(void);
 
 /* Simple versions which can be used when space is tight */
 void *malloc_simple(size_t size);
+void *memalign_simple(size_t alignment, size_t bytes);
 
 #pragma GCC visibility push(hidden)
 # if __STD_C
-- 
2.17.1