From patchwork Thu Mar 7 09:29:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans Verkuil X-Patchwork-Id: 10842463 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6DD8D13B5 for ; Thu, 7 Mar 2019 09:30:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 55A0A2EA0F for ; Thu, 7 Mar 2019 09:30:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4A5052EA27; Thu, 7 Mar 2019 09:30:10 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C9C852EA15 for ; Thu, 7 Mar 2019 09:30:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726217AbfCGJaI (ORCPT ); Thu, 7 Mar 2019 04:30:08 -0500 Received: from lb3-smtp-cloud7.xs4all.net ([194.109.24.31]:50178 "EHLO lb3-smtp-cloud7.xs4all.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726101AbfCGJaH (ORCPT ); Thu, 7 Mar 2019 04:30:07 -0500 Received: from test-no.fritz.box ([212.251.195.8]) by smtp-cloud7.xs4all.net with ESMTPA id 1pLlh7xLdLMwI1pLqhxTC1; Thu, 07 Mar 2019 10:30:06 +0100 From: hverkuil-cisco@xs4all.nl To: linux-media@vger.kernel.org Cc: Laurent Pinchart , Helen Koike , Hans Verkuil Subject: [PATCHv3 3/9] vivid: use vzalloc for dev->bitmap_out Date: Thu, 7 Mar 2019 10:29:55 +0100 Message-Id: <20190307093001.30435-4-hverkuil-cisco@xs4all.nl> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190307093001.30435-1-hverkuil-cisco@xs4all.nl> References: <20190307093001.30435-1-hverkuil-cisco@xs4all.nl> MIME-Version: 1.0 X-CMAE-Envelope: MS4wfDtJVmErlPxBa0Ma2lFQL3c+sE45ne12HMFudPKIcpNYPTmhRHzD3xO23RtUMY3+tDpj/PlAd6xQKw4abxR8DDbQCWCeqVwfyeBZWWwqV7hUbi81d8KO 4eHpAWVAc+6IVFbp9kXfysnSaOa/zfJuuFbGgy0Gpu4npbX/kLHPlk1nBuH+6nwCAyos44CyPzQv4gaktqUCgwEabljcCRbKmJZ22iJrpTCDEArIPJ6B4UNo oBNxJX2G8iE0NhDfBguNHKlhm4EH0MEYS4HsjCkWSoN6/1p0FfiAi1Ug+NUUCc3+O3rYIU8ViTa1CrEyf8guWA== Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Hans Verkuil When vivid is unloaded it used vfree to free dev->bitmap_out, but it was actually allocated using kmalloc. Use vzalloc instead, conform what vivid-vid-cap.c does. Signed-off-by: Hans Verkuil Reviewed-by: Laurent Pinchart --- drivers/media/platform/vivid/vivid-vid-out.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/media/platform/vivid/vivid-vid-out.c b/drivers/media/platform/vivid/vivid-vid-out.c index e61b91b414f9..9350ca65dd91 100644 --- a/drivers/media/platform/vivid/vivid-vid-out.c +++ b/drivers/media/platform/vivid/vivid-vid-out.c @@ -798,7 +798,7 @@ int vivid_vid_out_s_selection(struct file *file, void *fh, struct v4l2_selection s->r.height *= factor; if (dev->bitmap_out && (compose->width != s->r.width || compose->height != s->r.height)) { - kfree(dev->bitmap_out); + vfree(dev->bitmap_out); dev->bitmap_out = NULL; } *compose = s->r; @@ -941,15 +941,19 @@ int vidioc_s_fmt_vid_out_overlay(struct file *file, void *priv, return ret; if (win->bitmap) { - new_bitmap = memdup_user(win->bitmap, bitmap_size); + new_bitmap = vzalloc(bitmap_size); - if (IS_ERR(new_bitmap)) - return PTR_ERR(new_bitmap); + if (!new_bitmap) + return -ENOMEM; + if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) { + vfree(new_bitmap); + return -EFAULT; + } } dev->overlay_out_top = win->w.top; dev->overlay_out_left = win->w.left; - kfree(dev->bitmap_out); + vfree(dev->bitmap_out); dev->bitmap_out = new_bitmap; dev->clipcount_out = win->clipcount; if (dev->clipcount_out)