From 7c9509924c711d45d7932548d2c632f44f64e7e3 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Tue, 3 Mar 2015 23:55:49 +0100 Subject: [PATCH] hostfs: Use __getname() in follow_link Be consistent with all other functions in hostfs and just use __getname(). Signed-off-by: Richard Weinberger --- fs/hostfs/hostfs_kern.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index 7260f162db41..c60d886230ef 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -142,21 +142,19 @@ static char *follow_link(char *link) int len, n; char *name, *resolved, *end; - len = 64; - while (1) { + name = __getname(); + if (!name) { n = -ENOMEM; - name = kmalloc(len, GFP_KERNEL); - if (name == NULL) - goto out; - - n = hostfs_do_readlink(link, name, len); - if (n < len) - break; - len *= 2; - kfree(name); + goto out_free; } + + n = hostfs_do_readlink(link, name, PATH_MAX); if (n < 0) goto out_free; + else if (n == PATH_MAX) { + n = -E2BIG; + goto out_free; + } if (*name == '/') return name; @@ -175,13 +173,12 @@ static char *follow_link(char *link) } sprintf(resolved, "%s%s", link, name); - kfree(name); + __putname(name); kfree(link); return resolved; out_free: - kfree(name); - out: + __putname(name); return ERR_PTR(n); } -- 2.39.5