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authorThomas Gleixner <tglx@linutronix.de>2007-06-23 09:48:40 (GMT)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-06-24 19:08:53 (GMT)
commita06381fec77bf88ec6c5eb6324457cb04e9ffd69 (patch)
tree0762df31cf5e20cc52705cf7960b065922eeb1f3
parentb2510b1696730307e7a388ea04132236ab45ac20 (diff)
FUTEX: Restore the dropped ERSCH fix
The return value of futex_find_get_task() needs to be -ESRCH in case that the search fails. This was part of the original futex fixes and got accidentally dropped, when the futex-tidy-up patch was split out. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Stable Team <stable@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--kernel/futex.c14
1 files changed, 6 insertions, 8 deletions
diff --git a/kernel/futex.c b/kernel/futex.c
index df248f5..45490be 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -409,14 +409,12 @@ static struct task_struct * futex_find_get_task(pid_t pid)
rcu_read_lock();
p = find_task_by_pid(pid);
- if (!p)
- goto out_unlock;
- if ((current->euid != p->euid) && (current->euid != p->uid)) {
- p = NULL;
- goto out_unlock;
- }
- get_task_struct(p);
-out_unlock:
+
+ if (!p || ((current->euid != p->euid) && (current->euid != p->uid)))
+ p = ERR_PTR(-ESRCH);
+ else
+ get_task_struct(p);
+
rcu_read_unlock();
return p;

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