Message ID | 20191217170933.8108-1-tvrtko.ursulin@linux.intel.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | [v2] drm/i915: Fix pid leak with banned clients | expand |
Quoting Tvrtko Ursulin (2019-12-17 17:09:33) > From: Tvrtko Ursulin <tvrtko.ursulin@intel.com> > > Get_pid_task() needs to be paired with a put_pid or we leak a pid > reference every time a banned client tries to create a context. > > v2: > * task_pid_nr helper exists! (Chris) > > Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> > Fixes: b083a0870c79 ("drm/i915: Add per client max context ban limit") > Cc: Chris Wilson <chris@chris-wilson.co.uk> > Cc: Mika Kuoppala <mika.kuoppala@intel.com> As used by others, so must be safe! Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> -Chris
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c index 46b4d1d643f8..6618c0c6506c 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c @@ -2194,8 +2194,7 @@ int i915_gem_context_create_ioctl(struct drm_device *dev, void *data, ext_data.fpriv = file->driver_priv; if (client_is_banned(ext_data.fpriv)) { DRM_DEBUG("client %s[%d] banned from creating ctx\n", - current->comm, - pid_nr(get_task_pid(current, PIDTYPE_PID))); + current->comm, task_pid_nr(current)); return -EIO; }