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lxc_mount_auto_mounts: fix weirdness

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The default_mounts[i].destination is never NULL except in the last
'stop here' entry.  Coverity doesn't know about that and so is spewing
a warning.  In any case, let's add a more stringent check in case someone
accidentally adds a NULL there later.

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>
This commit is contained in:
Serge Hallyn 2015-10-03 21:52:16 +00:00 committed by Stéphane Graber
parent 2c79e91b4b
commit cc4fd5064b
1 changed files with 12 additions and 10 deletions
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22
src/lxc/conf.c
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@ -803,16 +803,18 @@ static int lxc_mount_auto_mounts(struct lxc_conf *conf, int flags, struct lxc_ha
return -1;
}
}
if (default_mounts[i].destination) {
/* will act like strdup if %r is not present */
destination = lxc_string_replace("%r", conf->rootfs.path ? conf->rootfs.mount : "", default_mounts[i].destination);
if (!destination) {
saved_errno = errno;
SYSERROR("memory allocation error");
free(source);
errno = saved_errno;
return -1;
}
if (!default_mounts[i].destination) {
ERROR("BUG: auto mounts destination %d was NULL", i);
return -1;
}
/* will act like strdup if %r is not present */
destination = lxc_string_replace("%r", conf->rootfs.path ? conf->rootfs.mount : "", default_mounts[i].destination);
if (!destination) {
saved_errno = errno;
SYSERROR("memory allocation error");
free(source);
errno = saved_errno;
return -1;
}
mflags = add_required_remount_flags(source, destination,
default_mounts[i].flags);