From: Al Viro Date: Sun, 19 Apr 2015 00:14:20 +0000 (-0400) Subject: link_path_walk: get rid of duplication X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bb8603f8e166e49f02f865213feee7afddeac9b0;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git link_path_walk: get rid of duplication What we do after the second walk_component() + put_link() + depth decrement in there is exactly equivalent to what's done right after the first walk_component(). Easy to verify and not at all surprising, seeing that there we have just walked the last component of nested symlink. Signed-off-by: Al Viro --- diff --git a/fs/namei.c b/fs/namei.c index b7ba71889afb..9f45d339cf45 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1771,6 +1771,7 @@ static int link_path_walk(const char *name, struct nameidata *nd) return 0; err = walk_component(nd, LOOKUP_FOLLOW); +Walked: if (err < 0) return err; @@ -1789,7 +1790,6 @@ static int link_path_walk(const char *name, struct nameidata *nd) nd->depth++; current->link_count++; -loop: /* will be gone very soon */ link = nd->link; s = get_link(&link, nd, &cookie); @@ -1826,13 +1826,7 @@ loop: /* will be gone very soon */ put_link(nd, &link, cookie); current->link_count--; nd->depth--; - if (err < 0) - return err; - if (err > 0) { - current->link_count++; - nd->depth++; - goto loop; - } + goto Walked; } } }