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Diffstat (limited to 'kernel/futex.c')
-rw-r--r--kernel/futex.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/kernel/futex.c b/kernel/futex.c
index c2b2e0b83ab..b9b8aea5389 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -297,7 +297,7 @@ static int futex_handle_fault(unsigned long address, int attempt)
struct vm_area_struct * vma;
struct mm_struct *mm = current->mm;
- if (attempt >= 2 || !(vma = find_vma(mm, address)) ||
+ if (attempt > 2 || !(vma = find_vma(mm, address)) ||
vma->vm_start > address || !(vma->vm_flags & VM_WRITE))
return -EFAULT;
@@ -397,7 +397,7 @@ static struct task_struct * futex_find_get_task(pid_t pid)
p = NULL;
goto out_unlock;
}
- if (p->state == EXIT_ZOMBIE || p->exit_state == EXIT_ZOMBIE) {
+ if (p->exit_state != 0) {
p = NULL;
goto out_unlock;
}
@@ -747,8 +747,10 @@ retry:
*/
if (attempt++) {
if (futex_handle_fault((unsigned long)uaddr2,
- attempt))
+ attempt)) {
+ ret = -EFAULT;
goto out;
+ }
goto retry;
}
@@ -1322,9 +1324,10 @@ static int do_futex_lock_pi(u32 __user *uaddr, int detect, int trylock,
* still holding the mmap_sem.
*/
if (attempt++) {
- if (futex_handle_fault((unsigned long)uaddr, attempt))
+ if (futex_handle_fault((unsigned long)uaddr, attempt)) {
+ ret = -EFAULT;
goto out_unlock_release_sem;
-
+ }
goto retry_locked;
}
@@ -1506,9 +1509,10 @@ pi_faulted:
* still holding the mmap_sem.
*/
if (attempt++) {
- if (futex_handle_fault((unsigned long)uaddr, attempt))
+ if (futex_handle_fault((unsigned long)uaddr, attempt)) {
+ ret = -EFAULT;
goto out_unlock;
-
+ }
goto retry_locked;
}