diff options
| author | Yin Kangkai <kangkai.yin@intel.com> | 2010-08-05 16:17:00 +0800 |
|---|---|---|
| committer | Martin Pitt <martin.pitt@ubuntu.com> | 2010-08-08 20:35:46 +0200 |
| commit | 08f11597f2618d46b23f0e747a41a0ee960bcf1b (patch) | |
| tree | 910a9cd7760491a283ee1c375a8857cc2492ab53 /udev | |
| parent | 40929a0222bbc82459c6418b03d51790ca65d74b (diff) | |
udevd: create static device links only when the target exists
For example, not all systems have PROC_KCORE enabled. Avoid a broken symbolic
link in those cases.
Signed-off-by: Yin Kangkai <kangkai.yin@intel.com>
Signed-off-by: Martin Pitt <martin.pitt@ubuntu.com>
Diffstat (limited to 'udev')
| -rw-r--r-- | udev/udevd.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/udev/udevd.c b/udev/udevd.c index 6dc97955d6..61b76f5c3e 100644 --- a/udev/udevd.c +++ b/udev/udevd.c @@ -900,10 +900,14 @@ static void static_dev_create_links(struct udev *udev, DIR *dir) unsigned int i; for (i = 0; i < ARRAY_SIZE(stdlinks); i++) { - udev_selinux_setfscreateconat(udev, dirfd(dir), stdlinks[i].link, S_IFLNK); - if (symlinkat(stdlinks[i].target, dirfd(dir), stdlinks[i].link) < 0 && errno == EEXIST) - utimensat(dirfd(dir), stdlinks[i].link, NULL, AT_SYMLINK_NOFOLLOW); - udev_selinux_resetfscreatecon(udev); + struct stat sb; + + if (stat(stdlinks[i].target, &sb) == 0) { + udev_selinux_setfscreateconat(udev, dirfd(dir), stdlinks[i].link, S_IFLNK); + if (symlinkat(stdlinks[i].target, dirfd(dir), stdlinks[i].link) < 0 && errno == EEXIST) + utimensat(dirfd(dir), stdlinks[i].link, NULL, AT_SYMLINK_NOFOLLOW); + udev_selinux_resetfscreatecon(udev); + } } } |