[PATCH 09/12] xf86drmSL: Check memory allocation by SL_RANDOM_INIT()

[Praveen Paneri <praveen.paneri@xxxxxxxxx>]

If the allocation fails, return -ENOMEM. Handle the return value
at the caller funtion drmSLInsert() as well.

Signed-off-by: Praveen Paneri <praveen.paneri@xxxxxxxxx>
---
 xf86drmSL.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/xf86drmSL.c b/xf86drmSL.c
index 45f3906..edafe7b 100644
--- a/xf86drmSL.c
+++ b/xf86drmSL.c
@@ -40,6 +40,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <errno.h>
 
 #define SL_MAIN 0
 
@@ -124,6 +125,7 @@ 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;
@@ -200,6 +202,9 @@ 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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