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| author | Joakim Tjernlund <Joakim.Tjernlund@transmode.se> | 2007-06-24 19:22:29 +0200 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2007-08-02 21:36:35 +0100 |
| commit | 5bd5c03c317085339deb044ba52fce131a6a0b67 (patch) | |
| tree | 2d4b7691136f6069ef074c5f7b2b872f2ecd9f2d | |
| parent | 370504cf7c68b953de55c41d5e0be97d30f3cf00 (diff) | |
| download | linux-5bd5c03c317085339deb044ba52fce131a6a0b67.tar.bz2 | |
[JFFS2] Prevent oops after 'node added in wrong place' debug check
jffs2_add_physical_node_ref() should never really return error -- it's
an internal debugging check which triggered. We really need to work out
why and stop it happening. But in the meantime, let's make the failure
mode a little less nasty.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| -rw-r--r-- | fs/jffs2/write.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/jffs2/write.c b/fs/jffs2/write.c index c9fe0ab3a329..1406f2ce20a7 100644 --- a/fs/jffs2/write.c +++ b/fs/jffs2/write.c @@ -173,6 +173,12 @@ struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2 flash_ofs |= REF_NORMAL; } fn->raw = jffs2_add_physical_node_ref(c, flash_ofs, PAD(sizeof(*ri)+datalen), f->inocache); + if (IS_ERR(fn->raw)) { + void *hold_err = fn->raw; + /* Release the full_dnode which is now useless, and return */ + jffs2_free_full_dnode(fn); + return ERR_PTR(PTR_ERR(hold_err)); + } fn->ofs = je32_to_cpu(ri->offset); fn->size = je32_to_cpu(ri->dsize); fn->frags = 0; @@ -291,6 +297,12 @@ struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jff } /* Mark the space used */ fd->raw = jffs2_add_physical_node_ref(c, flash_ofs | REF_PRISTINE, PAD(sizeof(*rd)+namelen), f->inocache); + if (IS_ERR(fd->raw)) { + void *hold_err = fd->raw; + /* Release the full_dirent which is now useless, and return */ + jffs2_free_full_dirent(fd); + return ERR_PTR(PTR_ERR(hold_err)); + } if (retried) { jffs2_dbg_acct_sanity_check(c,NULL); |