drm/msm: Add missing put_task_struct() in debugfs path

BugLink: https://bugs.launchpad.net/bugs/1969857
[ Upstream commit ac3e4f42d5ec459f701743debd9c1ad2f2247402 ]

Fixes: 25faf2f2e065 ("drm/msm: Show process names in gem_describe")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20220317184550.227991-1-robdclark@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index cb52ac01e51229d582a936048703c583833baa0f..d280dd64744de927a1f4ea3808a0f0d2b734bce3 100644 (file)
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -937,6 +937,7 @@ void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m,
                                        get_pid_task(aspace->pid, PIDTYPE_PID);
                                if (task) {
                                        comm = kstrdup(task->comm, GFP_KERNEL);
+                                       put_task_struct(task);
                                } else {
                                        comm = NULL;
                                }