Otherwise we are getting a nil dereference
| [ 0.000000] BUG: unable to handle kernel NULL pointer dereference at
(null)
| [ 0.000000] IP: [<ffffffff81391360>] strcmp+0x10/0x30
Signed-off-by: Cyrill Gorcunov <gorcu...@openvz.org>
---
mm/percpu.c | 3 +++
1 file changed, 3 insertions(+)
Index: linux-2.6.git/mm/percpu.c
===================================================================
--- linux-2.6.git.orig/mm/percpu.c
+++ linux-2.6.git/mm/percpu.c
@@ -1380,6 +1380,9 @@ enum pcpu_fc pcpu_chosen_fc __initdata =
static int __init percpu_alloc_setup(char *str)
{
+ if (!str)
+ return -EINVAL;
+
if (0)
/* nada */;
#ifdef CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK
--
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