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| author | Marco Ballesio <balejs@google.com> | 2021-03-15 18:16:29 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-24 08:26:31 +0100 |
| commit | 95c16f9d9cf9db090ae16179f1f721284a6f3aef (patch) | |
| tree | cbdd51a6ee5a39bd2f2474414c7dcc4b3a975446 /drivers/android | |
| parent | 432ff1e91694e4c55a5bf6bc0574f4c254970232 (diff) | |
| download | linux-95c16f9d9cf9db090ae16179f1f721284a6f3aef.tar.gz | |
binder: use EINTR for interrupted wait for work
when interrupted by a signal, binder_wait_for_work currently returns -ERESTARTSYS. This error code isn't propagated to user space, but a way to handle interruption due to signals must be provided to code using this API. Replace this instance of -ERESTARTSYS with -EINTR, which is propagated to user space. binder_wait_for_work Signed-off-by: Marco Ballesio <balejs@google.com> Signed-off-by: Li Li <dualli@google.com> Test: built, booted, interrupted a worker thread within Acked-by: Todd Kjos <tkjos@google.com> Link: https://lore.kernel.org/r/20210316011630.1121213-3-dualli@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/android')
| -rw-r--r-- | drivers/android/binder.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c index b93ca53bb90f..fe16c455a76e 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -3710,7 +3710,7 @@ static int binder_wait_for_work(struct binder_thread *thread, binder_inner_proc_lock(proc); list_del_init(&thread->waiting_thread_node); if (signal_pending(current)) { - ret = -ERESTARTSYS; + ret = -EINTR; break; } } @@ -4853,7 +4853,7 @@ err: if (thread) thread->looper_need_return = false; wait_event_interruptible(binder_user_error_wait, binder_stop_on_user_error < 2); - if (ret && ret != -ERESTARTSYS) + if (ret && ret != -EINTR) pr_info("%d:%d ioctl %x %lx returned %d\n", proc->pid, current->pid, cmd, arg, ret); err_unlocked: trace_binder_ioctl_done(ret); |