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-rw-r--r--mm/memcontrol-v1.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/mm/memcontrol-v1.c b/mm/memcontrol-v1.c
index 2aeea4d8bf8e..417c96f2da28 100644
--- a/mm/memcontrol-v1.c
+++ b/mm/memcontrol-v1.c
@@ -1842,9 +1842,12 @@ static ssize_t memcg_write_event_control(struct kernfs_open_file *of,
buf = endp + 1;
cfd = simple_strtoul(buf, &endp, 10);
- if ((*endp != ' ') && (*endp != '\0'))
+ if (*endp == '\0')
+ buf = endp;
+ else if (*endp == ' ')
+ buf = endp + 1;
+ else
return -EINVAL;
- buf = endp + 1;
event = kzalloc(sizeof(*event), GFP_KERNEL);
if (!event)