[JFFS2] Prevent list corruption when handling write errors

[linux-2.6-omap-h63xx.git] / fs / jffs2 / nodemgmt.c

diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index d88376992ed9b094cc23f7b75f7b8c07870468ba..c8b50dea9e14bf2531f38107bf607ef95685b250 100644 (file)
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -172,6 +172,11 @@ int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize,
 static void jffs2_close_nextblock(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
 {
 
+       if (c->nextblock == NULL) {
+               D1(printk(KERN_DEBUG "jffs2_close_nextblock: Erase block at 0x%08x has already been placed in a list\n",
+                 jeb->offset));
+               return;
+       }
        /* Check, if we have a dirty block now, or if it was dirty already */
        if (ISDIRTY (jeb->wasted_size + jeb->dirty_size)) {
                c->dirty_size += jeb->wasted_size;