From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [v2,2/6] ACPI / bus: Do not traverse through non-existed device table From: Sinan Kaya Message-Id: <68fea449-6478-3d6d-addf-79925ca62931@codeaurora.org> Date: Thu, 1 Feb 2018 15:32:49 -0500 To: Andy Shevchenko , dmaengine , "Rafael J . Wysocki" , linux-acpi@vger.kernel.org Cc: Sakari Ailus , Vinod Koul List-ID: T24gMi8xLzIwMTggMzoyMCBQTSwgQW5keSBTaGV2Y2hlbmtvIHdyb3RlOgo+IFdoZW4gX19hY3Bp X21hdGNoX2RldmljZSgpIGlzIGNhbGxlZCBpdCB3b3VsZCBiZSBwb3NzaWJsZSB0byBoYXZlCj4g QUNQSSBJRCB0YWJsZSBhIE1VTEwgcG9pbnRlci4gVG8gYXZvaWQgcG90ZW50aWFsIGRlcmVmZXJl bmNlLAoKTlVMTAoKPiBjaGVjayBmb3IgdGhpcyBiZWZvcmUgdHJhdmVyc2UuCj4gCj4gV2hpbGUg aGVyZSwgcmVtb3ZlIHJlZHVuZGFudCAnZWxzZScuCj4gCj4gRml4ZXM6IDgwMjEyYTE2MjMyOSAo IkFDUEkgLyBidXM6IEludHJvZHVjZSBhY3BpX2dldF9tYXRjaF9kYXRhKCkgZnVuY3Rpb24iKQo+ IENjOiBTaW5hbiBLYXlhIDxva2F5YUBjb2RlYXVyb3JhLm9yZz4KPiBDYzogU2FrYXJpIEFpbHVz IDxzYWthcmkuYWlsdXNAbGludXguaW50ZWwuY29tPgo+IENjOiBWaW5vZCBLb3VsIDx2aW5vZC5r b3VsQGludGVsLmNvbT4KPiBTaWduZWQtb2ZmLWJ5OiBBbmR5IFNoZXZjaGVua28gPGFuZHJpeS5z aGV2Y2hlbmtvQGxpbnV4LmludGVsLmNvbT4KPiAtLS0KPiB2MjogbmV3IHBhdGNoCj4gIGRyaXZl cnMvYWNwaS9idXMuYyB8IDEyICsrKysrKystLS0tLQo+ICAxIGZpbGUgY2hhbmdlZCwgNyBpbnNl cnRpb25zKCspLCA1IGRlbGV0aW9ucygtKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2FjcGkv YnVzLmMgYi9kcml2ZXJzL2FjcGkvYnVzLmMKPiBpbmRleCBhODdhOTdiZjc1ZjguLmYzYTdjMjll OTE5MCAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2FjcGkvYnVzLmMKPiArKysgYi9kcml2ZXJzL2Fj cGkvYnVzLmMKPiBAQCAtNzQ1LDExICs3NDUsMTMgQEAgc3RhdGljIGNvbnN0IHN0cnVjdCBhY3Bp X2RldmljZV9pZCAqX19hY3BpX21hdGNoX2RldmljZSgKPiAgCj4gIAlsaXN0X2Zvcl9lYWNoX2Vu dHJ5KGh3aWQsICZkZXZpY2UtPnBucC5pZHMsIGxpc3QpIHsKPiAgCQkvKiBGaXJzdCwgY2hlY2sg dGhlIEFDUEkvUE5QIElEcyBwcm92aWRlZCBieSB0aGUgY2FsbGVyLiAqLwo+IC0JCWZvciAoaWQg PSBpZHM7IGlkLT5pZFswXSB8fCBpZC0+Y2xzOyBpZCsrKSB7Cj4gLQkJCWlmIChpZC0+aWRbMF0g JiYgIXN0cmNtcCgoY2hhciAqKSBpZC0+aWQsIGh3aWQtPmlkKSkKPiAtCQkJCXJldHVybiBpZDsK PiAtCQkJZWxzZSBpZiAoaWQtPmNscyAmJiBfX2FjcGlfbWF0Y2hfZGV2aWNlX2NscyhpZCwgaHdp ZCkpCj4gLQkJCQlyZXR1cm4gaWQ7Cj4gKwkJaWYgKGlkcykgewo+ICsJCQlmb3IgKGlkID0gaWRz OyBpZC0+aWRbMF0gfHwgaWQtPmNsczsgaWQrKykgewo+ICsJCQkJaWYgKGlkLT5pZFswXSAmJiAh c3RyY21wKChjaGFyICopaWQtPmlkLCBod2lkLT5pZCkpCj4gKwkJCQkJcmV0dXJuIGlkOwo+ICsJ CQkJaWYgKGlkLT5jbHMgJiYgX19hY3BpX21hdGNoX2RldmljZV9jbHMoaWQsIGh3aWQpKQo+ICsJ CQkJCXJldHVybiBpZDsKPiArCQkJfQo+ICAJCX0KPiAgCj4gIAkJLyoKPiAKCldoeSBub3QgYmFp bCBvdXQgaGVyZSBpbW1lZGlhdGVseSBpZiBpZHMgaXMgbnVsbD8KCl9fYWNwaV9tYXRjaF9kZXZp Y2UoKQp7CgkvKgoJICogSWYgdGhlIGRldmljZSBpcyBub3QgcHJlc2VudCwgaXQgaXMgdW5uZWNl c3NhcnkgdG8gbG9hZCBkZXZpY2UKCSAqIGRyaXZlciBmb3IgaXQuCgkgKi8KCWlmICghZGV2aWNl IHx8ICFkZXZpY2UtPnN0YXR1cy5wcmVzZW50KQoJCXJldHVybiBOVUxMOwp9Cg==