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Thu, 23 Apr 2020 07:52:46 -0700 (PDT) Date: Thu, 23 Apr 2020 22:52:40 +0800 From: Dejin Zheng To: Markus Elfring Subject: Re: [PATCH v1] fbdev: sm712fb: fix an issue about iounmap for a wrong address Message-ID: <20200423145239.GC1562@nuc8i5> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) X-Mailman-Approved-At: Thu, 23 Apr 2020 22:50:35 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-fbdev@vger.kernel.org, Teddy Wang , Bartlomiej Zolnierkiewicz , Greg Kroah-Hartman , kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Andy Shevchenko , Sudip Mukherjee Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" T24gVGh1LCBBcHIgMjMsIDIwMjAgYXQgMDI6MTQ6NDhQTSArMDIwMCwgTWFya3VzIEVsZnJpbmcg d3JvdGU6Cj4gPiB0aGUgc2ZiLT5mYi0+c2NyZWVuX2Jhc2UgaXMgbm90IHNhdmUgdGhlIHZhbHVl IGdldCBieSBpb3VubWFwKCkgd2hlbgo+ID4gdGhlIGNoaXAgaWQgaXMgMHg3MjAuCj4gCj4gSSBz dWdnZXN0IHRvIGltcHJvdmUgdGhpcyBjaGFuZ2UgZGVzY3JpcHRpb24uCj4gSG93IGRpZCB5b3Ug ZGV0ZXJtaW5lIHJlbGV2YW50IGRpZmZlcmVuY2VzIGZvciB0aGUgbWVudGlvbmVkIGNoaXAgbW9k ZWw/Cj4KUmVhZCBhbmQgY2hlY2sgaXRzIGNvZGVz44CCCgpzbXRjZmJfcGNpX3Byb2JlKCkgLS0+ IHNtdGNfbWFwX3NtZW0oKQoKc210Y2ZiX3BjaV9wcm9iZSgpCnN3aXRjaCAoc2ZiLT5jaGlwX2lk KSB7CiAgICAgICAgY2FzZSAweDcxMDoKICAgICAgICBjYXNlIDB4NzEyOgoJCXNmYi0+bGZiID0g aW9yZW1hcChtbWlvX2Jhc2UsIG1taW9fYWRkcik7CgljYXNlIDB4NzIwOgoJCXNmYi0+ZHBfcmVn cyA9IGlvcmVtYXAobW1pb19iYXNlLCAweDAwMjAwMDAwICsgc21lbV9zaXplKTsKICAgICAgICAg ICAgICAgIHNmYi0+bGZiID0gc2ZiLT5kcF9yZWdzICsgMHgwMDIwMDAwMDsKCX0Kc210Y19tYXBf c21lbSgpCglzZmItPmZiLT5zY3JlZW5fYmFzZSA9IHNmYi0+bGZiOwoKCnNtdGNmYl9wY2lfcmVt b3ZlKCkgLS0+IHNtdGNfdW5tYXBfc21lbSgpCgpzbXRjX3VubWFwX3NtZW0oKQoJaW91bm1hcChz ZmItPmZiLT5zY3JlZW5fYmFzZSk7Cgo+IAo+ID4gc28gaW91bm1hcCgpIGZvciBhZGRyZXNzIHNm Yi0+ZmItPnNjcmVlbl9iYXNlIGlzIG5vdCByaWdodC4KPiAKPiBXaWxsIGFub3RoZXIgaW1wZXJh dGl2ZSB3b3JkaW5nIGJlY29tZSBoZWxwZnVsIGhlcmU/Cj4gCnllcywgdGhpcyBpcyB3aHkgbmVl ZCB0byBjaGFuZ2UgdGhpcyBjb2RlLgoKPiAKPiDigKYKPiA+ICsrKyBiL2RyaXZlcnMvdmlkZW8v ZmJkZXYvc203MTJmYi5jCj4gPiBAQCAtMTQyOSw2ICsxNDI5LDggQEAgIHN0YXRpYyBpbnQgc210 Y19tYXBfc21lbShzdHJ1Y3Qgc210Y2ZiX2luZm8gKnNmYiwKPiA+ICBzdGF0aWMgdm9pZCBzbXRj X3VubWFwX3NtZW0oc3RydWN0IHNtdGNmYl9pbmZvICpzZmIpCj4gPiAgewo+ID4gIAlpZiAoc2Zi ICYmIHNmYi0+ZmItPnNjcmVlbl9iYXNlKSB7Cj4gPiArCQlpZiAoc2ZiLT5jaGlwX2lkID09IDB4 NzIwKQo+ID4gKwkJCXNmYi0+ZmItPnNjcmVlbl9iYXNlIC09IDB4MDAyMDAwMDA7Cj4gPiAgCQlp b3VubWFwKHNmYi0+ZmItPnNjcmVlbl9iYXNlKTsKPiAKPiBIb3cgZG8geW91IHRoaW5rIGFib3V0 IHRvIHVzZSBkZXNjcmlwdGl2ZSBpZGVudGlmaWVycyBmb3IKPiB0aGUgc2hvd24gY29uc3RhbnRz Pwo+ClRoZXNlIHR3byBjb25zdGFudHMgYXJlIG9yaWdpbmFsbHkgaW4gdGhlIGRyaXZlciwgSSBk b24ndCBrbm93IGVub3VnaAphYm91dCBpdHMgbWVhbmluZywgVGhlcmUgYXJlIGEgbG90IG9mIGNv bnN0YW50cyBpbiB0aGlzIGRyaXZlci4gSWYgSQpyZXBsYWNlIGl0IHdpdGggdGhlIG1hY3JvLCBJ IHdvcnJ5IHRoYXQgdGhlIG5hbWUgb2YgdGhlIG1hY3JvIG1heSBub3QKYmUgYWNjdXJhdGUuCgo+ IFdvdWxkIHlvdSBsaWtlIHRvIGNsYXJpZnkgYW55IHJlbGF0ZWQgc29mdHdhcmUgYW5hbHlzaXMg YXBwcm9hY2hlcz8KPgpqdXN0IHJlYWQgY29lZGVzIGFuZCBjaGVjayBpdC4KCj4gUmVnYXJkcywK PiBNYXJrdXMKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K ZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0 dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==