From mboxrd@z Thu Jan 1 00:00:00 1970 From: Inki Dae Subject: [PATCH 1/2] drm/exynos: fix null pointer dereference issue Date: Thu, 13 Nov 2014 16:50:08 +0900 Message-ID: <1415865009-15979-2-git-send-email-inki.dae@samsung.com> References: <1415865009-15979-1-git-send-email-inki.dae@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-reply-to: <1415865009-15979-1-git-send-email-inki.dae@samsung.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org Cc: a.hajda@samsung.com, linux-samsung-soc@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org VGhpcyBwYXRjaCBmaXhlcyBudWxsIHBvaW50ZXIgZGVyZWZlcmVuY2UgaXNzdWUgaW5jdXJyZWQK d2hlbiBpcHAgZHJpdmVyIGlzIGVuYWJsZWQgYW5kIEV4eW5vcyBkcm0gZHJpdmVyIGlzIGNsb3Nl ZC4KCk5vbiBrbXMgZHJpdmVyIHNob3VsZCByZWdpc3RlciBpdHMgb3duIHN1YiBkcml2ZXIgdG8g c2V0dXAgbmVjZXNzYXJ5CnJlc291cmNlcywgd2hpY2ggaXMgZG9uZSBieSBsb2FkKCkuIFNvIG51 bGwgcG9pbnRlciBkZXJlZmVyZW5jZQpvY2N1cnMgd2hlbiBpcHAgZHJpdmVyIGlzIGVuYWJsZWQg YW5kIEV4eW5vcyBkcm0gZHJpdmVyIGlzIGNsb3NlZApiZWNhdXNlIGlwcCBjb3JlIGRldmljZSBp cyByZWdpc3RlcmVkIGFmdGVyIGNvbXBvbmVudF9tYXN0ZXJfYWRkX3dpdGhfbWF0Y2gKY2FsbC4K ClRoaXMgcGF0Y2ggbWFrZXMgZXh5bm9zX2RybV9kZXZpY2Vfc3ViZHJ2X3Byb2JlKCkgdG8gYmUg Y2FsbGVkIGFmdGVyIGFsbCBub24Ka21zIGRyaXZlcnMgYXJlIHJlZ2lzdGVyZWQuCgpTaWduZWQt b2ZmLWJ5OiBJbmtpIERhZSA8aW5raS5kYWVAc2Ftc3VuZy5jb20+Ci0tLQogZHJpdmVycy9ncHUv ZHJtL2V4eW5vcy9leHlub3NfZHJtX2Rydi5jIHwgICAxOCArKysrKysrKystLS0tLS0tLS0KIDEg ZmlsZSBjaGFuZ2VkLCA5IGluc2VydGlvbnMoKyksIDkgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0 IGEvZHJpdmVycy9ncHUvZHJtL2V4eW5vcy9leHlub3NfZHJtX2Rydi5jIGIvZHJpdmVycy9ncHUv ZHJtL2V4eW5vcy9leHlub3NfZHJtX2Rydi5jCmluZGV4IGU1YzRjNmMuLmYwYmNkYzYgMTAwNjQ0 Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9leHlub3MvZXh5bm9zX2RybV9kcnYuYworKysgYi9kcml2 ZXJzL2dwdS9kcm0vZXh5bm9zL2V4eW5vc19kcm1fZHJ2LmMKQEAgLTEwOCwxMSArMTA4LDYgQEAg c3RhdGljIGludCBleHlub3NfZHJtX2xvYWQoc3RydWN0IGRybV9kZXZpY2UgKmRldiwgdW5zaWdu ZWQgbG9uZyBmbGFncykKIAlpZiAocmV0KQogCQlnb3RvIGVycl91bmJpbmRfYWxsOwogCi0JLyog UHJvYmUgbm9uIGttcyBzdWIgZHJpdmVycyBhbmQgdmlydHVhbCBkaXNwbGF5IGRyaXZlci4gKi8K LQlyZXQgPSBleHlub3NfZHJtX2RldmljZV9zdWJkcnZfcHJvYmUoZGV2KTsKLQlpZiAocmV0KQot CQlnb3RvIGVycl9jbGVhbnVwX3ZibGFuazsKLQogCS8qCiAJICogZW5hYmxlIGRybSBpcnEgbW9k ZS4KIAkgKiAtIHdpdGggaXJxX2VuYWJsZWQgPSB0cnVlLCB3ZSBjYW4gdXNlIHRoZSB2Ymxhbmsg ZmVhdHVyZS4KQEAgLTEzOCw4ICsxMzMsNiBAQCBzdGF0aWMgaW50IGV4eW5vc19kcm1fbG9hZChz dHJ1Y3QgZHJtX2RldmljZSAqZGV2LCB1bnNpZ25lZCBsb25nIGZsYWdzKQogCiAJcmV0dXJuIDA7 CiAKLWVycl9jbGVhbnVwX3ZibGFuazoKLQlkcm1fdmJsYW5rX2NsZWFudXAoZGV2KTsKIGVycl91 bmJpbmRfYWxsOgogCWNvbXBvbmVudF91bmJpbmRfYWxsKGRldi0+ZGV2LCBkZXYpOwogZXJyX21v ZGVfY29uZmlnX2NsZWFudXA6CkBAIC0xNTMsOCArMTQ2LDYgQEAgZXJyX2ZyZWVfcHJpdmF0ZToK IAogc3RhdGljIGludCBleHlub3NfZHJtX3VubG9hZChzdHJ1Y3QgZHJtX2RldmljZSAqZGV2KQog ewotCWV4eW5vc19kcm1fZGV2aWNlX3N1YmRydl9yZW1vdmUoZGV2KTsKLQogCWV4eW5vc19kcm1f ZmJkZXZfZmluaShkZXYpOwogCWRybV9rbXNfaGVscGVyX3BvbGxfZmluaShkZXYpOwogCkBAIC02 MzYsOSArNjI3LDE2IEBAIHN0YXRpYyBpbnQgZXh5bm9zX2RybV9wbGF0Zm9ybV9wcm9iZShzdHJ1 Y3QgcGxhdGZvcm1fZGV2aWNlICpwZGV2KQogCQlnb3RvIGVycl91bnJlZ2lzdGVyX2lwcF9kcnY7 CiAjZW5kaWYKIAorCS8qIFByb2JlIG5vbiBrbXMgc3ViIGRyaXZlcnMgYW5kIHZpcnR1YWwgZGlz cGxheSBkcml2ZXIuICovCisJcmV0ID0gZXh5bm9zX2RybV9kZXZpY2Vfc3ViZHJ2X3Byb2JlKHBs YXRmb3JtX2dldF9kcnZkYXRhKHBkZXYpKTsKKwlpZiAocmV0KQorCQlnb3RvIGVycl91bnJlZ2lz dGVyX3Jlc291cmNlczsKKwogCXJldHVybiByZXQ7CiAKK2Vycl91bnJlZ2lzdGVyX3Jlc291cmNl czoKICNpZmRlZiBDT05GSUdfRFJNX0VYWU5PU19JUFAKKwlleHlub3NfcGxhdGZvcm1fZGV2aWNl X2lwcF91bnJlZ2lzdGVyKCk7CiBlcnJfdW5yZWdpc3Rlcl9pcHBfZHJ2OgogCXBsYXRmb3JtX2Ry aXZlcl91bnJlZ2lzdGVyKCZpcHBfZHJpdmVyKTsKIGVycl91bnJlZ2lzdGVyX2dzY19kcnY6CkBA IC02OTEsNiArNjg5LDggQEAgZXJyX3VucmVnaXN0ZXJfZmltZF9kcnY6CiAKIHN0YXRpYyBpbnQg ZXh5bm9zX2RybV9wbGF0Zm9ybV9yZW1vdmUoc3RydWN0IHBsYXRmb3JtX2RldmljZSAqcGRldikK IHsKKwlleHlub3NfZHJtX2RldmljZV9zdWJkcnZfcmVtb3ZlKHBsYXRmb3JtX2dldF9kcnZkYXRh KHBkZXYpKTsKKwogI2lmZGVmIENPTkZJR19EUk1fRVhZTk9TX0lQUAogCWV4eW5vc19wbGF0Zm9y bV9kZXZpY2VfaXBwX3VucmVnaXN0ZXIoKTsKIAlwbGF0Zm9ybV9kcml2ZXJfdW5yZWdpc3Rlcigm aXBwX2RyaXZlcik7Ci0tIAoxLjcuOS41CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5m cmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3Rp bmZvL2RyaS1kZXZlbAo=