packet: fix tp_reserve race in packet_set_ring

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / 9p / trans_common.c

diff --git a/net/9p/trans_common.c b/net/9p/trans_common.c
index de8df957867def380831cc9a3589386f82a78aae..2ee3879161b1769f456501044a08c8ebfda420a0 100644 (file)
--- a/net/9p/trans_common.c
+++ b/net/9p/trans_common.c
@@ -24,11 +24,11 @@
  */
 void p9_release_pages(struct page **pages, int nr_pages)
 {
-       int i = 0;
-       while (pages[i] && nr_pages--) {
-               put_page(pages[i]);
-               i++;
-       }
+       int i;
+
+       for (i = 0; i < nr_pages; i++)
+               if (pages[i])
+                       put_page(pages[i]);
 }
 EXPORT_SYMBOL(p9_release_pages);