Messages in this thread Patch in this message | | | Date | Sat, 22 May 2010 12:00:21 +0200 (CEST) | From | Julia Lawall <> | Subject | [PATCH 4/8] fs/ubifs: Use ERR_CAST |
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From: Julia Lawall <julia@diku.dk>
Use ERR_CAST(x) rather than ERR_PTR(PTR_ERR(x)). The former makes more clear what is the purpose of the operation, which otherwise looks like a no-op.
The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/)
// <smpl> @@ type T; T x; identifier f; @@
T f (...) { <+... - ERR_PTR(PTR_ERR(x)) + x ...+> }
@@ expression x; @@
- ERR_PTR(PTR_ERR(x)) + ERR_CAST(x) // </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
--- fs/ubifs/lpt.c | 14 +++++++------- fs/ubifs/lpt_commit.c | 2 +- 2 files changed, 8 insertions(+), 8 deletions(-)
diff -u -p a/fs/ubifs/lpt.c b/fs/ubifs/lpt.c --- a/fs/ubifs/lpt.c +++ b/fs/ubifs/lpt.c @@ -1457,13 +1457,13 @@ struct ubifs_lprops *ubifs_lpt_lookup(st shft -= UBIFS_LPT_FANOUT_SHIFT; nnode = ubifs_get_nnode(c, nnode, iip); if (IS_ERR(nnode)) - return ERR_PTR(PTR_ERR(nnode)); + return ERR_CAST(nnode); } iip = ((i >> shft) & (UBIFS_LPT_FANOUT - 1)); shft -= UBIFS_LPT_FANOUT_SHIFT; pnode = ubifs_get_pnode(c, nnode, iip); if (IS_ERR(pnode)) - return ERR_PTR(PTR_ERR(pnode)); + return ERR_CAST(pnode); iip = (i & (UBIFS_LPT_FANOUT - 1)); dbg_lp("LEB %d, free %d, dirty %d, flags %d", lnum, pnode->lprops[iip].free, pnode->lprops[iip].dirty, @@ -1586,7 +1586,7 @@ struct ubifs_lprops *ubifs_lpt_lookup_di nnode = c->nroot; nnode = dirty_cow_nnode(c, nnode); if (IS_ERR(nnode)) - return ERR_PTR(PTR_ERR(nnode)); + return ERR_CAST(nnode); i = lnum - c->main_first; shft = c->lpt_hght * UBIFS_LPT_FANOUT_SHIFT; for (h = 1; h < c->lpt_hght; h++) { @@ -1594,19 +1594,19 @@ struct ubifs_lprops *ubifs_lpt_lookup_di shft -= UBIFS_LPT_FANOUT_SHIFT; nnode = ubifs_get_nnode(c, nnode, iip); if (IS_ERR(nnode)) - return ERR_PTR(PTR_ERR(nnode)); + return ERR_CAST(nnode); nnode = dirty_cow_nnode(c, nnode); if (IS_ERR(nnode)) - return ERR_PTR(PTR_ERR(nnode)); + return ERR_CAST(nnode); } iip = ((i >> shft) & (UBIFS_LPT_FANOUT - 1)); shft -= UBIFS_LPT_FANOUT_SHIFT; pnode = ubifs_get_pnode(c, nnode, iip); if (IS_ERR(pnode)) - return ERR_PTR(PTR_ERR(pnode)); + return ERR_CAST(pnode); pnode = dirty_cow_pnode(c, pnode); if (IS_ERR(pnode)) - return ERR_PTR(PTR_ERR(pnode)); + return ERR_CAST(pnode); iip = (i & (UBIFS_LPT_FANOUT - 1)); dbg_lp("LEB %d, free %d, dirty %d, flags %d", lnum, pnode->lprops[iip].free, pnode->lprops[iip].dirty, diff -u -p a/fs/ubifs/lpt_commit.c b/fs/ubifs/lpt_commit.c --- a/fs/ubifs/lpt_commit.c +++ b/fs/ubifs/lpt_commit.c @@ -646,7 +646,7 @@ static struct ubifs_pnode *pnode_lookup( shft -= UBIFS_LPT_FANOUT_SHIFT; nnode = ubifs_get_nnode(c, nnode, iip); if (IS_ERR(nnode)) - return ERR_PTR(PTR_ERR(nnode)); + return ERR_CAST(nnode); } iip = ((i >> shft) & (UBIFS_LPT_FANOUT - 1)); return ubifs_get_pnode(c, nnode, iip);
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