From patchwork Fri Mar 14 20:01:40 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: BALATON Zoltan X-Patchwork-Id: 14017378 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4BED5C28B2F for ; Fri, 14 Mar 2025 20:03:15 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ttBEG-0000a9-9N; Fri, 14 Mar 2025 16:02:00 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ttBEB-0000ZO-RX; Fri, 14 Mar 2025 16:01:56 -0400 Received: from zero.eik.bme.hu ([2001:738:2001:2001::2001]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ttBE6-0001GC-At; Fri, 14 Mar 2025 16:01:52 -0400 Received: from zero.eik.bme.hu (localhost [127.0.0.1]) by zero.eik.bme.hu (Postfix) with ESMTP id 2B0524E6065; Fri, 14 Mar 2025 21:01:42 +0100 (CET) X-Virus-Scanned: amavisd-new at eik.bme.hu Received: from zero.eik.bme.hu ([127.0.0.1]) by zero.eik.bme.hu (zero.eik.bme.hu [127.0.0.1]) (amavisd-new, port 10028) with ESMTP id W_s8oEtS1qWp; Fri, 14 Mar 2025 21:01:40 +0100 (CET) Received: by zero.eik.bme.hu (Postfix, from userid 432) id 2DBE74E6069; Fri, 14 Mar 2025 21:01:40 +0100 (CET) From: BALATON Zoltan Subject: [PATCH] ppc/amigaone: Check blk_pwrite return value To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Cc: Nicholas Piggin , clg@redhat.com Message-Id: <20250314200140.2DBE74E6069@zero.eik.bme.hu> Date: Fri, 14 Mar 2025 21:01:40 +0100 (CET) Received-SPF: pass client-ip=2001:738:2001:2001::2001; envelope-from=balaton@eik.bme.hu; helo=zero.eik.bme.hu X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Coverity reported that return value of blk_pwrite() maybe should not be ignored. We can't do much if this happens other than report an error but let's do that to silence this report. Resolves: Coverity CID 1593725 Signed-off-by: BALATON Zoltan Reviewed-by: Nicholas Piggin --- hw/ppc/amigaone.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/hw/ppc/amigaone.c b/hw/ppc/amigaone.c index 483512125f..5d787c3059 100644 --- a/hw/ppc/amigaone.c +++ b/hw/ppc/amigaone.c @@ -108,8 +108,8 @@ static void nvram_write(void *opaque, hwaddr addr, uint64_t val, uint8_t *p = memory_region_get_ram_ptr(&s->mr); p[addr] = val; - if (s->blk) { - blk_pwrite(s->blk, addr, 1, &val, 0); + if (s->blk && blk_pwrite(s->blk, addr, 1, &val, 0) < 0) { + error_report("%s: could not write %s", __func__, blk_name(s->blk)); } } @@ -151,15 +151,17 @@ static void nvram_realize(DeviceState *dev, Error **errp) *c = cpu_to_be32(CRC32_DEFAULT_ENV); /* Also copies terminating \0 as env is terminated by \0\0 */ memcpy(p + 4, default_env, sizeof(default_env)); - if (s->blk) { - blk_pwrite(s->blk, 0, sizeof(crc) + sizeof(default_env), p, 0); + if (s->blk && + blk_pwrite(s->blk, 0, sizeof(crc) + sizeof(default_env), p, 0) < 0 + ) { + error_report("%s: could not write %s", __func__, blk_name(s->blk)); } return; } if (*c == 0) { *c = cpu_to_be32(crc32(0, p + 4, NVRAM_SIZE - 4)); - if (s->blk) { - blk_pwrite(s->blk, 0, 4, p, 0); + if (s->blk && blk_pwrite(s->blk, 0, 4, p, 0) < 0) { + error_report("%s: could not write %s", __func__, blk_name(s->blk)); } } if (be32_to_cpu(*c) != crc) {