+ "sw_sync: export sw_sync API" - sakindia123/android_kernel_samsung_…

…smdk4412@10dc6fa

+ "sw_sync: Fix error paths" - sakindia123/android_kernel_samsung_smdk4412@dc0b65a

drivers/base/sw_sync.c

@@ -15,6 +15,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/file.h>
 #include <linux/fs.h>
 #include <linux/miscdevice.h>
@@ -42,6 +43,7 @@ struct sync_pt *sw_sync_pt_create(struct sw_sync_timeline *obj, u32 value)
 
 	return (struct sync_pt *)pt;
 }
+EXPORT_SYMBOL(sw_sync_pt_create);
 
 static struct sync_pt *sw_sync_pt_dup(struct sync_pt *sync_pt)
 {
@@ -117,14 +119,15 @@ struct sw_sync_timeline *sw_sync_timeline_create(const char *name)
 
 	return obj;
 }
+EXPORT_SYMBOL(sw_sync_timeline_create);
 
 void sw_sync_timeline_inc(struct sw_sync_timeline *obj, u32 inc)
 {
 	obj->value += inc;
 
 	sync_timeline_signal(&obj->obj);
 }
-
+EXPORT_SYMBOL(sw_sync_timeline_inc);
 
 #ifdef CONFIG_SW_SYNC_USER
 /* *WARNING*
@@ -164,8 +167,13 @@ long sw_sync_ioctl_create_fence(struct sw_sync_timeline *obj, unsigned long arg)
 	struct sync_fence *fence;
 	struct sw_sync_create_fence_data data;
 
-	if (copy_from_user(&data, (void __user *)arg, sizeof(data)))
-		return -EFAULT;
+	if (fd < 0)
+		return fd;
+
+	if (copy_from_user(&data, (void __user *)arg, sizeof(data))) {
+		err = -EFAULT;
+		goto err;
+	}
 
 	pt = sw_sync_pt_create(obj, data.value);
 	if (pt == NULL) {