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: dmaengine: fix dmaengine_desc_callback_valid() doesn't check for callback_result From: Vinod Koul Message-Id: <20190104145110.GF13372@vkoul-mobl.Dlink> Date: Fri, 4 Jan 2019 20:21:10 +0530 To: Andrea Merello Cc: dan.j.williams@intel.com, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, radhey.shyam.pandey@xilinx.com List-ID: T24gMTYtMTEtMTgsIDE0OjU2LCBBbmRyZWEgTWVyZWxsbyB3cm90ZToKPiBUaGVyZSBhcmUgdHdv IGZsYXZvcnMgb2YgRE1BIGNvbXBsZXRpb24gY2FsbGJhY2tzOiBjYWxsYmFjaygpIGFuZAo+IGNh bGxiYWNrX3Jlc3VsdCgpOyB0aGUgbGF0dGVyIHRha2VzIGFuIGFkZGl0aW9uYWwgcGFyYW1ldGVy IHRoYXQgY2Fycmllcwo+IHJlc3VsdCBpbmZvcm1hdGlvbi4KPiAKPiBNb3N0IGRtYWVuZ2luZSBo ZWxwZXIgZnVuY3Rpb25zIHRoYXQgd29yayB3aXRoIGNhbGxiYWNrcyB0YWtlIGNhcmUgb2YgYm90 aAo+IGZsYXZvcnMgaS5lLiBkbWFlbmdpbmVfZGVzY19nZXRfY2FsbGJhY2tfaW52b2tlKCkgZmly c3QgY2hlY2tzIGZvcgo+IGNhbGxiYWNrX3Jlc3VsdCgpIHRvIGJlIG5vdCBOVUxMLCBhbmQgZXZl bnR1YWxseSBpdCBjYWxscyB0aGlzIG9uZTsKPiBvdGhlcndpc2UgaXQgZ29lcyBvbiBjaGVja2lu ZyBmb3IgY2FsbGJhY2soKS4KPiAKPiBJdCBzZWVtcyBob3dldmVyIHRoYXQgZG1hZW5naW5lX2Rl c2NfY2FsbGJhY2tfdmFsaWQoKSBkb2VzIG5vdCBjYXJlIGFib3V0Cj4gY2FsbGJhY2tfcmVzdWx0 KCksIGFuZCBpdCByZXR1cm5zIGZhbHNlIGluIGNhc2UgY2FsbGJhY2soKSBpcyBOVUxMIGJ1dAo+ IGNhbGxiYWNrX3Jlc3VsdCgpIGlzIG5vdDsgdW5sZXNzIHRoZXJlIGlzIGEgKGhpZGRlbiB0byBt ZSkgcmVhc29uIGZvciBkb2luZwo+IHNvIHRoZW4gSSdkIHNheSB0aGlzIGlzIHdyb25nLgo+IAo+ IEkndmUgaGl0IHRoaXMgYnkgdXNpbmcgYSBETUEgY29udHJvbGxlciBkcml2ZXIgKHhpbGlueF9k bWEpIHRoYXQgZG9lc24ndAo+IHRyaWdnZXIgYW55IGNhbGxiYWNrIGludm9jYXRpb24gdW5sZXNz IGRtYWVuZ2luZV9kZXNjX2NhbGxiYWNrX3ZhbGlkKCkKPiByZXR1cm5zIHRydWUsIHdoaWxlIEkg aGFkIG9ubHkgY2FsbGJhY2tfcmVzdWx0KCkgaW1wbGVtZW50ZWQgaW4gbXkgY2xpZW50Cj4gZHJp dmVyICh3aGljaCBBRkFJQ1QgaXMgYWx3YXlzIGZpbmUgc2luY2UgZG1hZW5naW5lIGRvY3VtZW50 YXRpb24gc2F5cyB0aGF0Cj4gY2FsbGJhY2soKSB3aWxsIGJlIGRlcHJlY2F0ZWQpLgo+IAo+IFRo aXMgcGF0Y2ggZml4ZXMgdGhpcyBieSBtYWtpbmcgZG1hZW5naW5lX2Rlc2NfY2FsbGJhY2tfdmFs aWQoKSB0byByZXR1cm4KPiB0cnVlIGluIHRoZSBzYWlkIHNjZW5hcmlvLgo+IAo+IFNpZ25lZC1v ZmYtYnk6IEFuZHJlYSBNZXJlbGxvIDxhbmRyZWEubWVyZWxsb0BnbWFpbC5jb20+Cj4gLS0tCj4g IGRyaXZlcnMvZG1hL2RtYWVuZ2luZS5oIHwgMiArLQo+ICAxIGZpbGUgY2hhbmdlZCwgMSBpbnNl cnRpb24oKyksIDEgZGVsZXRpb24oLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9kbWEvZG1h ZW5naW5lLmggYi9kcml2ZXJzL2RtYS9kbWFlbmdpbmUuaAo+IGluZGV4IDUwMWMwYjA2M2Y4NS4u MGJhMmMxZjNjNTVkIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZG1hL2RtYWVuZ2luZS5oCj4gKysr IGIvZHJpdmVycy9kbWEvZG1hZW5naW5lLmgKPiBAQCAtMTY4LDcgKzE2OCw3IEBAIGRtYWVuZ2lu ZV9kZXNjX2dldF9jYWxsYmFja19pbnZva2Uoc3RydWN0IGRtYV9hc3luY190eF9kZXNjcmlwdG9y ICp0eCwKPiAgc3RhdGljIGlubGluZSBib29sCj4gIGRtYWVuZ2luZV9kZXNjX2NhbGxiYWNrX3Zh bGlkKHN0cnVjdCBkbWFlbmdpbmVfZGVzY19jYWxsYmFjayAqY2IpCj4gIHsKPiAtCXJldHVybiAo Y2ItPmNhbGxiYWNrKSA/IHRydWUgOiBmYWxzZTsKPiArCXJldHVybiAoY2ItPmNhbGxiYWNrIHx8 IGNiLT5jYWxsYmFja19yZXN1bHQpOwoKU28gSSBkbyBub3QgdGhpbmsgdGhpcyBvbmUgc2hvdWxk IHRha2UgY2FyZSBvZiBjYWxsYmFja19yZXN1bHQsIGl0IGlzCnN1cHBvc2VkIHRvIGNoZWNrIGlm IHRoZSBjYWxsYmFjayBpcyB2YWxpZCBvciBub3QuLiBOb3RoaW5nIG1vcmUuCgpPZmNvdXJzZSB1 c2FnZSBvZiB0aGlzIG1heWJlIGluY29ycmVjdCB3aGljaCBzaG91bGQgYmUgZml4ZWQuIFdlIGRv IGhhdmUKZG1hZW5naW5lX2Rlc2NfY2FsbGJhY2tfaW52b2tlKCkgd2hpY2ggcHJvcGFnYXRlcyB0 aGUgY2FsbGJhY2tfcmVzdWx0IHRvCnVzZXIK