From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52050) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WGyLh-0002GO-3P for qemu-devel@nongnu.org; Fri, 21 Feb 2014 17:13:43 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WGyLb-0000YS-3f for qemu-devel@nongnu.org; Fri, 21 Feb 2014 17:13:37 -0500 Received: from mx1.redhat.com ([209.132.183.28]:9862) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WGyLa-0000Y6-Qx for qemu-devel@nongnu.org; Fri, 21 Feb 2014 17:13:31 -0500 Received: from int-mx12.intmail.prod.int.phx2.redhat.com (int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.25]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s1LMDU3q018564 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Fri, 21 Feb 2014 17:13:30 -0500 From: Kevin Wolf Date: Fri, 21 Feb 2014 23:12:20 +0100 Message-Id: <1393020771-32712-24-git-send-email-kwolf@redhat.com> In-Reply-To: <1393020771-32712-1-git-send-email-kwolf@redhat.com> References: <1393020771-32712-1-git-send-email-kwolf@redhat.com> Subject: [Qemu-devel] [PULL 23/54] vhdx: correctly propagate errors List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com From: Paolo Bonzini Signed-off-by: Paolo Bonzini Reviewed-by: Fam Zheng Signed-off-by: Kevin Wolf --- block/vhdx.c | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) diff --git a/block/vhdx.c b/block/vhdx.c index 366ff2e..5390ba6 100644 --- a/block/vhdx.c +++ b/block/vhdx.c @@ -402,9 +402,10 @@ int vhdx_update_headers(BlockDriverState *bs, BDRVVHDXState *s, } /* opens the specified header block from the VHDX file header section */ -static int vhdx_parse_header(BlockDriverState *bs, BDRVVHDXState *s) +static void vhdx_parse_header(BlockDriverState *bs, BDRVVHDXState *s, + Error **errp) { - int ret = 0; + int ret; VHDXHeader *header1; VHDXHeader *header2; bool h1_valid = false; @@ -462,7 +463,6 @@ static int vhdx_parse_header(BlockDriverState *bs, BDRVVHDXState *s) } else if (!h1_valid && h2_valid) { s->curr_header = 1; } else if (!h1_valid && !h2_valid) { - ret = -EINVAL; goto fail; } else { /* If both headers are valid, then we choose the active one by the @@ -473,27 +473,22 @@ static int vhdx_parse_header(BlockDriverState *bs, BDRVVHDXState *s) } else if (h2_seq > h1_seq) { s->curr_header = 1; } else { - ret = -EINVAL; goto fail; } } vhdx_region_register(s, s->headers[s->curr_header]->log_offset, s->headers[s->curr_header]->log_length); - - ret = 0; - goto exit; fail: - qerror_report(ERROR_CLASS_GENERIC_ERROR, "No valid VHDX header found"); + error_setg_errno(errp, -ret, "No valid VHDX header found"); qemu_vfree(header1); qemu_vfree(header2); s->headers[0] = NULL; s->headers[1] = NULL; exit: qemu_vfree(buffer); - return ret; } @@ -878,7 +873,7 @@ static int vhdx_open(BlockDriverState *bs, QDict *options, int flags, int ret = 0; uint32_t i; uint64_t signature; - + Error *local_err = NULL; s->bat = NULL; s->first_visible_write = true; @@ -901,8 +896,10 @@ static int vhdx_open(BlockDriverState *bs, QDict *options, int flags, * header update */ vhdx_guid_generate(&s->session_guid); - ret = vhdx_parse_header(bs, s); - if (ret < 0) { + vhdx_parse_header(bs, s, &local_err); + if (local_err != NULL) { + error_propagate(errp, local_err); + ret = -EINVAL; goto fail; } -- 1.8.1.4