From: Frediano Ziglio <fziglio@redhat.com>
Date: Wed, 3 Jun 2015 11:09:15 +0000 (+0100)
Subject: drm/qxl: Handle correctly failures in qxl_alloc_relase_reserved
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=de0b523a5a4c99859513238559d62e0dd4a9a67e;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

drm/qxl: Handle correctly failures in qxl_alloc_relase_reserved

Free resources correctly if function fails

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
index 6fd8e50e3506..00604ed173a2 100644
--- a/drivers/gpu/drm/qxl/qxl_release.c
+++ b/drivers/gpu/drm/qxl/qxl_release.c
@@ -363,6 +363,7 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
 		ret = qxl_release_bo_alloc(qdev, &qdev->current_release_bo[cur_idx]);
 		if (ret) {
 			mutex_unlock(&qdev->release_mutex);
+			qxl_release_free(qdev, *release);
 			return ret;
 		}
 	}
@@ -377,13 +378,17 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
 
 	mutex_unlock(&qdev->release_mutex);
 
-	qxl_release_list_add(*release, bo);
+	ret = qxl_release_list_add(*release, bo);
+	qxl_bo_unref(&bo);
+	if (ret) {
+		qxl_release_free(qdev, *release);
+		return ret;
+	}
 
 	info = qxl_release_map(qdev, *release);
 	info->id = idr_ret;
 	qxl_release_unmap(qdev, *release, info);
 
-	qxl_bo_unref(&bo);
 	return ret;
 }