[PATCH] jffs2: avoid divide-by-zero
authorDavid Woodhouse <dwmw2@infradead.org>
Wed, 8 Mar 2006 05:55:36 +0000 (21:55 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Wed, 8 Mar 2006 22:14:01 +0000 (14:14 -0800)
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
fs/jffs2/scan.c

index 3e51dd1da8aa7f271dc1205139d9dc0d658cec52..cf55b221fc2b7dc86d9778a4c6d5c02a38fdbb70 100644 (file)
@@ -233,7 +233,7 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
                c->nextblock->dirty_size = 0;
        }
 #ifdef CONFIG_JFFS2_FS_WRITEBUFFER
-       if (!jffs2_can_mark_obsolete(c) && c->nextblock && (c->nextblock->free_size % c->wbuf_pagesize)) {
+       if (!jffs2_can_mark_obsolete(c) && c->wbuf_pagesize && c->nextblock && (c->nextblock->free_size % c->wbuf_pagesize)) {
                /* If we're going to start writing into a block which already
                   contains data, and the end of the data isn't page-aligned,
                   skip a little and align it. */