From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Kroah-Hartman Subject: Re: [PATCH] drm/i915: do not return invalid pointers as a *dentry Date: Thu, 31 Jan 2019 19:17:02 +0100 Message-ID: <20190131181702.GA4989@kroah.com> References: <20190131131507.GA19807@kroah.com> <20190131175926.GB19523@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <20190131175926.GB19523@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Rodrigo Vivi Cc: David Airlie , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gVGh1LCBKYW4gMzEsIDIwMTkgYXQgMDk6NTk6MjZBTSAtMDgwMCwgUm9kcmlnbyBWaXZpIHdy b3RlOgo+IE9uIFRodSwgSmFuIDMxLCAyMDE5IGF0IDAyOjE1OjA3UE0gKzAxMDAsIEdyZWcgS3Jv YWgtSGFydG1hbiB3cm90ZToKPiA+IFdoZW4gY2FsbGluZyBkZWJ1Z2ZzIGZ1bmN0aW9ucywgdGhl eSBjYW4gbm93IHJldHVybiBlcnJvciB2YWx1ZXMgaWYKPiA+IHNvbWV0aGluZyB3ZW50IHdyb25n LiAgSWYgdGhhdCBoYXBwZW5zLCByZXR1cm4gYSBOVUxMIGFzIGEgKmRlbnRyeSB0bwo+ID4gdGhl IHJlbGF5IGNvcmUgaW5zdGVhZCBvZiBwYXNzaW5nIGl0IGFuIGlsbGVnYWwgcG9pbnRlci4KPiA+ IAo+ID4gVGhlIHJlbGF5IGNvcmUgc2hvdWxkIGJlIGFibGUgdG8gaGFuZGxlIGFuIGlsbGVnYWwg cG9pbnRlciwgYnV0IGFkZCB0aGlzCj4gPiBjaGVjayB0byBiZSBzYWZlLgo+ID4gCj4gPiBDYzog SmFuaSBOaWt1bGEgPGphbmkubmlrdWxhQGxpbnV4LmludGVsLmNvbT4KPiA+IENjOiBKb29uYXMg TGFodGluZW4gPGpvb25hcy5sYWh0aW5lbkBsaW51eC5pbnRlbC5jb20+Cj4gPiBDYzogUm9kcmln byBWaXZpIDxyb2RyaWdvLnZpdmlAaW50ZWwuY29tPgo+ID4gQ2M6IERhdmlkIEFpcmxpZSA8YWly bGllZEBsaW51eC5pZT4KPiA+IENjOiBEYW5pZWwgVmV0dGVyIDxkYW5pZWxAZmZ3bGwuY2g+Cj4g PiBDYzogaW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwo+ID4gQ2M6IGRyaS1kZXZlbEBs aXN0cy5mcmVlZGVza3RvcC5vcmcKPiA+IFNpZ25lZC1vZmYtYnk6IEdyZWcgS3JvYWgtSGFydG1h biA8Z3JlZ2toQGxpbnV4Zm91bmRhdGlvbi5vcmc+Cj4gPiAtLS0KPiA+ICBkcml2ZXJzL2dwdS9k cm0vaTkxNS9pbnRlbF9ndWNfbG9nLmMgfCAzICsrKwo+ID4gIDEgZmlsZSBjaGFuZ2VkLCAzIGlu c2VydGlvbnMoKykKPiA+IAo+ID4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2lu dGVsX2d1Y19sb2cuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2d1Y19sb2cuYwo+ID4g aW5kZXggZDNlYmRiYzAxODJlLi44YmYwMzQ5N2RjZDggMTAwNjQ0Cj4gPiAtLS0gYS9kcml2ZXJz L2dwdS9kcm0vaTkxNS9pbnRlbF9ndWNfbG9nLmMKPiA+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9p OTE1L2ludGVsX2d1Y19sb2cuYwo+ID4gQEAgLTE0MCw2ICsxNDAsOSBAQCBzdGF0aWMgc3RydWN0 IGRlbnRyeSAqY3JlYXRlX2J1Zl9maWxlX2NhbGxiYWNrKGNvbnN0IGNoYXIgKmZpbGVuYW1lLAo+ ID4gIAo+ID4gIAlidWZfZmlsZSA9IGRlYnVnZnNfY3JlYXRlX2ZpbGUoZmlsZW5hbWUsIG1vZGUs Cj4gPiAgCQkJCSAgICAgICBwYXJlbnQsIGJ1ZiwgJnJlbGF5X2ZpbGVfb3BlcmF0aW9ucyk7Cj4g PiArCWlmIChJU19FUlIoYnVmX2ZpbGUpKQo+ID4gKwkJcmV0dXJuIE5VTEw7Cj4gCj4gSSBzdGls bCBzZWUgYSByZXR1cm4gTlVMTCBpbnNpZGUgZGVidWdmc19jcmVhdGVfZmlsZSBvbiBtYXN0ZXIs Cj4gYnV0IHByb2JhYmx5IHlvdSBhcmUgYWhlYWQgd2l0aCBzb21lIGNoYW5nZSB0aGF0IEkgZGlk bid0IHNlZSB5ZXQgcmlnaHQ/CgpZZXMsIHRoaXMgcGF0Y2ggaXMgaW4gbGludXgtbmV4dCBub3cg YW5kIHNob3VsZCBnbyB0byBMaW51cyBmb3IKNS4wLWZpbmFsOgoJaHR0cHM6Ly9naXQua2VybmVs Lm9yZy9wdWIvc2NtL2xpbnV4L2tlcm5lbC9naXQvZ3JlZ2toL2RyaXZlci1jb3JlLmdpdC9jb21t aXQvP2g9ZHJpdmVyLWNvcmUtbGludXMmaWQ9ZmY5ZmI3MmJjMDc3MDVjMDA3OTVjYTQ4NjMxZjdm ZmZlMjRkMmM2YgoKPiBJJ20ganVzdCB3b25kZXJpbmcgaWYgaXQgd291bGRuJ3QgYmUgYmV0dGVy IGZvciBub3cgdG8gZ28gd2l0aAo+IAo+IGlmIChJU19FUlJfT1JfTlVMTChidWZfZmlsZSkpCgpO b3QgcmVhbGx5LCBiZWNhdXNlIHRoZSBuZXh0IGxpbmUgaXM6Cgo+ID4gIAlyZXR1cm4gYnVmX2Zp bGU7CgpTbyBpdCdzIHRoZSBzYW1lIHRoaW5nIDopCgo+IGFwcGFyZW50bHkgd2UgYWxzbyBuZWVk IGl0IG9uIGk5MTVfZGVidWdmcy5jIGk5MTVfZGVidWdmc19yZWdpc3RlcigpCgpJIGhhdmUgYSBi dW5jaCBvZiBwYXRjaGVzIEknbSB3b3JraW5nIG9uIHRvIGdvIHRocm91Z2ggYW5kIGZpeCB1cCBh bGwgb2YKdGhpcyAoeW91IHNob3VsZG4ndCBiZSBjaGVja2luZyB0aGUgcmV0dXJuIHZhbHVlIGF0 IGFsbCwgdW5sZXNzIHlvdQpyZWFsbHkgd2FudCB0byB1c2UgaXQgYXMgYSAicmVhbCIgZGVudHJ5 IGFuZCBub3QganVzdCBzb21ldGhpbmcgdGhhdApkZWJ1Z2ZzIHVzZXMgaW50ZXJuYWxseS4KCkJ1 dCBmb3Igbm93LCB5b3Ugc2hvdWxkIGJlIGZpbmUsIHRoYXQgY2FsbCB3aWxsIG9ubHkgZmFpbCBp ZiB5b3UgYXJlIG91dApvZiBtZW1vcnksIG9yIGRpZCBzb21ldGhpbmcgcmVhbGx5IHdyb25nLgoK dGhhbmtzLAoKZ3JlZyBrLWgKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0 b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50 ZWwtZ2Z4Cg==