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libudev: enumerate - do not try to match against an empty subsystem

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This commit is contained in:
Kay Sievers
2013-09-04 17:59:14 +02:00
parent f9e84da678
commit 756c9a2499
1 changed files with 4 additions and 1 deletions
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5
src/libudev/libudev-enumerate.c
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@@ -721,12 +721,14 @@ static bool match_subsystem(struct udev_enumerate *udev_enumerate, const char *s
{
struct udev_list_entry *list_entry;
subsystem = subsystem ? : "";
if (!subsystem)
return false;
udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->subsystem_nomatch_list)) {
if (fnmatch(udev_list_entry_get_name(list_entry), subsystem, 0) == 0)
return false;
}
if (udev_list_get_entry(&udev_enumerate->subsystem_match_list) != NULL) {
udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->subsystem_match_list)) {
if (fnmatch(udev_list_entry_get_name(list_entry), subsystem, 0) == 0)
@@ -734,6 +736,7 @@ static bool match_subsystem(struct udev_enumerate *udev_enumerate, const char *s
}
return false;
}
return true;
}