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[JFFS2] Fix oops when marking space dirty in scan, but no previous node exists.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
David Woodhouse 19 tahun lalu
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2ebf09c249
1 mengubah file dengan 1 tambahan dan 1 penghapusan
  1. 1 1
      fs/jffs2/nodelist.c

+ 1 - 1
fs/jffs2/nodelist.c

@@ -1139,7 +1139,7 @@ int jffs2_scan_dirty_space(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb
 		BUG();
 	}
 	/* REF_EMPTY_NODE is !obsolete, so that works OK */
-	if (ref_obsolete(jeb->last_node)) {
+	if (jeb->last_node && ref_obsolete(jeb->last_node)) {
 #ifdef TEST_TOTLEN
 		jeb->last_node->__totlen += size;
 #endif