drm/i915/selftests: Add some missing error propagation

Add some missing error propagation in live_parallel_switch.

To avoid needlessly burdening the various backport processes, note I am
not marking it as a fix against any patches and not copying stable since
it is debug/selftests only code.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Cc: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Fixes: 50d16d44cce4 ("drm/i915/selftests: Exercise context switching in parallel")
Fixes: 6407cf533217 ("drm/i915/selftests: Stop using kthread_stop()")
Link: https://patchwork.freedesktop.org/patch/msgid/20230605131135.396854-1-tvrtko.ursulin@linux.intel.com
(cherry picked from commit 412fa1f097f48c8c1321806dd25e46618e0da147)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
index a81fa6a..7b516b1 100644 (file)
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
@@ -346,8 +346,10 @@ static int live_parallel_switch(void *arg)
                                continue;
 
                        ce = intel_context_create(data[m].ce[0]->engine);
-                       if (IS_ERR(ce))
+                       if (IS_ERR(ce)) {
+                               err = PTR_ERR(ce);
                                goto out;
+                       }
 
                        err = intel_context_pin(ce);
                        if (err) {
@@ -367,8 +369,10 @@ static int live_parallel_switch(void *arg)
 
                worker = kthread_create_worker(0, "igt/parallel:%s",
                                               data[n].ce[0]->engine->name);
-               if (IS_ERR(worker))
+               if (IS_ERR(worker)) {
+                       err = PTR_ERR(worker);
                        goto out;
+               }
 
                data[n].worker = worker;
        }
@@ -397,8 +401,10 @@ static int live_parallel_switch(void *arg)
                        }
                }
 
-               if (igt_live_test_end(&t))
-                       err = -EIO;
+               if (igt_live_test_end(&t)) {
+                       err = err ?: -EIO;
+                       break;
+               }
        }
 
 out: