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-rw-r--r--src/gallium/auxiliary/rtasm/rtasm_execmem.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/src/gallium/auxiliary/rtasm/rtasm_execmem.c b/src/gallium/auxiliary/rtasm/rtasm_execmem.c
index edc1b66e836..8c3dbefd109 100644
--- a/src/gallium/auxiliary/rtasm/rtasm_execmem.c
+++ b/src/gallium/auxiliary/rtasm/rtasm_execmem.c
@@ -69,7 +69,7 @@ static struct mem_block *exec_heap = NULL;
static unsigned char *exec_mem = NULL;
-static void
+static int
init_heap(void)
{
if (!exec_heap)
@@ -79,6 +79,8 @@ init_heap(void)
exec_mem = (unsigned char *) mmap(0, EXEC_HEAP_SIZE,
PROT_EXEC | PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+ return (exec_mem != MAP_FAILED);
}
@@ -90,7 +92,8 @@ rtasm_exec_malloc(size_t size)
pipe_mutex_lock(exec_mutex);
- init_heap();
+ if (!init_heap())
+ goto bail;
if (exec_heap) {
size = (size + 31) & ~31; /* next multiple of 32 bytes */
@@ -101,7 +104,8 @@ rtasm_exec_malloc(size_t size)
addr = exec_mem + block->ofs;
else
debug_printf("rtasm_exec_malloc failed\n");
-
+
+bail:
pipe_mutex_unlock(exec_mutex);
return addr;