[PATCH] slab: Adds missing kmalloc() checks.

[Luiz Fernando Capitulino]

 Adds two missing kmalloc() checks in kmem_cache_init(). Note that if the
allocation fails, there is nothing to do, so we panic(); and the __LINE__
is used because is good to know which allocation has failed.

Signed-off-by: Luiz Capitulino <lcapitulino@xxxxxxxxxxxxxxx>

 mm/slab.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mm/slab.c b/mm/slab.c
index e5ec26e..3f23ad2 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1115,6 +1115,8 @@ void __init kmem_cache_init(void)
 		void * ptr;
 
 		ptr = kmalloc(sizeof(struct arraycache_init), GFP_KERNEL);
+		if (!ptr)
+			panic("%s at %d: Could not allocate memory.\n", __FUNCTION__, __LINE__);
 
 		local_irq_disable();
 		BUG_ON(ac_data(&cache_cache) != &initarray_cache.cache);
@@ -1124,6 +1126,8 @@ void __init kmem_cache_init(void)
 		local_irq_enable();
 
 		ptr = kmalloc(sizeof(struct arraycache_init), GFP_KERNEL);
+		if (!ptr)
+			panic("%s at %d: Could not allocate memory.\n", __FUNCTION__, __LINE__);
 
 		local_irq_disable();
 		BUG_ON(ac_data(malloc_sizes[INDEX_AC].cs_cachep)


-- 
Luiz Fernando N. Capitulino
-
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