[Intel-gfx] [PATCH] drm/i915/selftests: Don't dereference an error pointer

[Dan Carpenter]

There is an error path where "ctx" is an error pointer so we can't
pass it to kernel_context_close().

Fixes: 09a4c02e58c1 ("drm/i915: Look for an active kernel context before switching")
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/selftests/i915_gem_context.c
index 836f1af8b833..e41036fcd97e 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_context.c
@@ -541,7 +541,8 @@ static int igt_switch_to_kernel_context(void *arg)
 		err = -EIO;
 	mutex_unlock(&i915->drm.struct_mutex);
 
-	kernel_context_close(ctx);
+	if (!IS_ERR(ctx))
+		kernel_context_close(ctx);
 	return err;
 }