From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: [BUG, regression] Dereferencing of NULL pointer in radeon_mn_unregister() Date: Mon, 2 Sep 2019 06:19:00 +0000 Message-ID: <20190902061858.GI24116@mellanox.com> References: <20190901140409.GA1251@mellanox.com> <2fc7ef14-e89a-1f2d-381d-1c9b05da02d3@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <2fc7ef14-e89a-1f2d-381d-1c9b05da02d3-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Content-Language: en-US Content-ID: <5058CDA8ED05BB47B1A8F7D738A584D8-wNKe6lTLrGecE4WynfumptQqCkab/8FMAL8bYrjMMd8@public.gmane.org> List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "amd-gfx" To: Petr Cvek Cc: "Deucher, Alexander" , "David1.Zhou-5C7GfCeVMHo@public.gmane.org" , "Koenig, Christian" , "amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org" , "sfr-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org" T24gU3VuLCBTZXAgMDEsIDIwMTkgYXQgMDU6NDg6MzZQTSArMDIwMCwgUGV0ciBDdmVrIHdyb3Rl Ogo+ID4gSXMganVzdCBhZGRpbmcgYQo+ID4gCj4gPiAgIGlmICghcm1uKQo+ID4gICAgICAgIHJl dHJ1bgo+ID4gCj4gPiBUbyB0aGUgdG9wIG9mIHJhZGVvbl9tbl91bnJlZ2lzdGVyIGVub3VnaCB0 byBmaXggaXQ/Cj4gCj4gWWVhaCBpdCBzZWVtcyB0byB3b3JrLiBBIGZ1cnRoZXIgdGVzdCB3aXRo IG1pbmV0ZXN0IHdvcmtzIHRvby4KCk9rYXksIEkgYWRkZWQgdGhpcyBwYXRjaCB0byB0aGUgaG1t IHRyZWUsIHRoYW5rcy4KCkZyb20gODI5Mzk0ZDc3ZTMwMjZlMDhlNzg3OWZiMzdmMTRjOTBkZTdi MGZkOCBNb24gU2VwIDE3IDAwOjAwOjAwIDIwMDEKRnJvbTogSmFzb24gR3VudGhvcnBlIDxqZ2dA bWVsbGFub3guY29tPgpEYXRlOiBNb24sIDIgU2VwIDIwMTkgMDM6MDE6MDMgLTAzMDAKU3ViamVj dDogW1BBVENIXSBkcm0vcmFkZW9uOiBndWFyZCBhZ2FpbnN0IGNhbGxpbmcgYW4gdW5wYWlyZWQK IHJhZGVvbl9tbl91bnJlZ2lzdGVyKCkKClRoaXMgY2hlY2sgd2FzIGFjY2lkZW50bHkgZGVsZXRl ZCBpbiB0aGUgYmVsb3cgY29tbWl0LiBUaGVyZSBhcmUgY2FzZXMKd2hlcmUgdGhlIGRyaXZlciB3 aWxsIGNhbGwgdW5yZWdpc3RlciBldmVuIHRob3VnaCBpdCBoYXNuJ3QgcmVnaXN0ZXJlZAphbnl0 aGluZy4KCiBDUFUgMCBVbmFibGUgdG8gaGFuZGxlIGtlcm5lbCBwYWdpbmcgcmVxdWVzdCBhdCB2 aXJ0dWFsIGFkZHJlc3MgMDAwMDAwMWMsIGVwYyA9PSA4MDhkZTZkNCwgcmEgPT0gODA0ZDMyZWMK IENhbGwgVHJhY2U6CiBbPDgwOGRlNmQ0Pl0gbXV0ZXhfbG9jaysweDgvMHg0NAogWzw4MDRkMzJl Yz5dIHJhZGVvbl9tbl91bnJlZ2lzdGVyKzB4M2MvMHhiMAogWzw4MDQxNTgzYz5dIHJhZGVvbl9n ZW1fb2JqZWN0X2ZyZWUrMHgxOC8weDJjCiBbPDgwM2E0NTFjPl0gZHJtX2dlbV9vYmplY3RfcmVs ZWFzZV9oYW5kbGUrMHg3NC8weGFjCiBbPDgwM2E0NWQwPl0gZHJtX2dlbV9oYW5kbGVfZGVsZXRl KzB4N2MvMHgxMjgKIFs8ODAzYTViZjQ+XSBkcm1faW9jdGxfa2VybmVsKzB4YjAvMHgxMDgKIFs8 ODAzYTVlNzQ+XSBkcm1faW9jdGwrMHgyMDAvMHgzYTgKIFs8ODAzZTA3YjQ+XSByYWRlb25fZHJt X2lvY3RsKzB4NTQvMHhjMAogWzw4MDEyMTRkYz5dIGRvX3Zmc19pb2N0bCsweDRlOC8weDgxYwog Wzw4MDEyMTg2ND5dIGtzeXNfaW9jdGwrMHg1NC8weGIwCiBbPDgwMDExMDBjPl0gc3lzY2FsbF9j b21tb24rMHgzNC8weDU4CgpMaW5rOiBodHRwczovL2xvcmUua2VybmVsLm9yZy9yLzJmYzdlZjE0 LWU4OWEtMWYyZC0zODFkLTFjOWIwNWRhMDJkM0BnbWFpbC5jb20KRml4ZXM6IDUzNGU1Zjg0Yjdh OSAoImRybS9yYWRlb246IHVzZSBtbXVfbm90aWZpZXJfZ2V0L3B1dCBmb3Igc3RydWN0IHJhZGVv bl9tbiIpClJlcG9ydGVkLWJ5OiBQZXRyIEN2ZWsgPHBldHJjdmVrY3pAZ21haWwuY29tPgpTaWdu ZWQtb2ZmLWJ5OiBKYXNvbiBHdW50aG9ycGUgPGpnZ0BtZWxsYW5veC5jb20+Ci0tLQogZHJpdmVy cy9ncHUvZHJtL3JhZGVvbi9yYWRlb25fbW4uYyB8IDMgKysrCiAxIGZpbGUgY2hhbmdlZCwgMyBp bnNlcnRpb25zKCspCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL3JhZGVvbi9yYWRlb25f bW4uYyBiL2RyaXZlcnMvZ3B1L2RybS9yYWRlb24vcmFkZW9uX21uLmMKaW5kZXggZmM4MjU0Mjcz YTgwMGIuLjFlZTIwZDUyOGE3YzI0IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vcmFkZW9u L3JhZGVvbl9tbi5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9yYWRlb24vcmFkZW9uX21uLmMKQEAg LTIzNCw2ICsyMzQsOSBAQCB2b2lkIHJhZGVvbl9tbl91bnJlZ2lzdGVyKHN0cnVjdCByYWRlb25f Ym8gKmJvKQogCXN0cnVjdCByYWRlb25fbW4gKnJtbiA9IGJvLT5tbjsKIAlzdHJ1Y3QgbGlzdF9o ZWFkICpoZWFkOwogCisJaWYgKCFybW4pCisJCXJldHVybjsKKwogCW11dGV4X2xvY2soJnJtbi0+ bG9jayk7CiAJLyogc2F2ZSB0aGUgbmV4dCBsaXN0IGVudHJ5IGZvciBsYXRlciAqLwogCWhlYWQg PSBiby0+bW5fbGlzdC5uZXh0OwotLSAKMi4yMy4wCgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwphbWQtZ2Z4IG1haWxpbmcgbGlzdAphbWQtZ2Z4QGxpc3Rz LmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2FtZC1nZng=