[Intel-gfx] [PATCH 09/11] xf86drmSL: Check memory allocation by SL_RANDOM_INIT()
Praveen Paneri
praveen.paneri at intel.com
Fri Apr 10 01:43:01 PDT 2015
If the allocation fails, return -ENOMEM. Handle the return value
at the caller funtion drmSLInsert() as well.
v2: Rebased to the latest.
Signed-off-by: Praveen Paneri <praveen.paneri at intel.com>
---
xf86drmSL.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/xf86drmSL.c b/xf86drmSL.c
index 42b5bc4..3ceb087 100644
--- a/xf86drmSL.c
+++ b/xf86drmSL.c
@@ -40,6 +40,7 @@
#include <stdio.h>
#include <stdlib.h>
+#include <errno.h>
#include "xf86drm.h"
@@ -92,6 +93,7 @@ static int SLRandomLevel(void)
SL_RANDOM_DECL;
SL_RANDOM_INIT(SL_RANDOM_SEED);
+ if (!state) return -ENOMEM;
while ((SL_RANDOM & 0x01) && level < SL_MAX_LEVEL) ++level;
return level;
@@ -168,6 +170,9 @@ int drmSLInsert(void *l, unsigned long key, void *value)
level = SLRandomLevel();
+ if (level < 0)
+ return level;
+
if (level > list->level) {
level = ++list->level;
update[level] = list->head;
--
1.9.1
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