If alloc_uprobe() fails uprobe_register() should return ENOMEM, not 0.
Signed-off-by: Oleg Nesterov <[email protected]>
---
kernel/events/uprobes.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index a741ba7..3ec114c 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -813,7 +813,9 @@ int uprobe_register(struct inode *inode, loff_t offset,
struct uprobe_consumer *
mutex_lock(uprobes_hash(inode));
uprobe = alloc_uprobe(inode, offset);
- if (uprobe && !consumer_add(uprobe, uc)) {
+ if (!uprobe) {
+ ret = -ENOMEM;
+ } else if (!consumer_add(uprobe, uc)) {
ret = __uprobe_register(uprobe);
if (ret) {
uprobe->consumers = NULL;
--
1.5.5.1
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