From 1028283c60e6e35911bb80b959a533b4af1b8b65 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:35 +0200 Subject: [PATCH] smbios: Clean up error handling in smbios_add() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. smbios_entry_add() does that, and then exit()s. It also passes &error_fatal to qemu_opts_validate(). Both wrong, but currently harmless, as its only caller passes &error_fatal. Messed up in commit 1007a37e208. Clean it up. Cc: Paolo Bonzini Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau Acked-by: Paolo Bonzini Message-Id: <20181017082702.5581-12-armbru@redhat.com> --- hw/smbios/smbios.c | 90 +++++++++++++++++++++++++++++++--------------- 1 file changed, 62 insertions(+), 28 deletions(-) diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c index a27e54b2fa..920939454e 100644 --- a/hw/smbios/smbios.c +++ b/hw/smbios/smbios.c @@ -950,6 +950,7 @@ static void save_opt_list(size_t *ndest, const char ***dest, void smbios_entry_add(QemuOpts *opts, Error **errp) { + Error *err = NULL; const char *val; assert(!smbios_immutable); @@ -960,12 +961,16 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) int size; struct smbios_table *table; /* legacy mode only */ - qemu_opts_validate(opts, qemu_smbios_file_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_file_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } size = get_image_size(val); if (size == -1 || size < sizeof(struct smbios_structure_header)) { - error_report("Cannot read SMBIOS file %s", val); - exit(1); + error_setg(errp, "Cannot read SMBIOS file %s", val); + return; } /* @@ -978,14 +983,15 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) smbios_tables_len); if (load_image(val, (uint8_t *)header) != size) { - error_report("Failed to load SMBIOS file %s", val); - exit(1); + error_setg(errp, "Failed to load SMBIOS file %s", val); + return; } if (test_bit(header->type, have_fields_bitmap)) { - error_report("can't load type %d struct, fields already specified!", - header->type); - exit(1); + error_setg(errp, + "can't load type %d struct, fields already specified!", + header->type); + return; } set_bit(header->type, have_binfile_bitmap); @@ -1030,19 +1036,23 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) unsigned long type = strtoul(val, NULL, 0); if (type > SMBIOS_MAX_TYPE) { - error_report("out of range!"); - exit(1); + error_setg(errp, "out of range!"); + return; } if (test_bit(type, have_binfile_bitmap)) { - error_report("can't add fields, binary file already loaded!"); - exit(1); + error_setg(errp, "can't add fields, binary file already loaded!"); + return; } set_bit(type, have_fields_bitmap); switch (type) { case 0: - qemu_opts_validate(opts, qemu_smbios_type0_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type0_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt(&type0.vendor, opts, "vendor"); save_opt(&type0.version, opts, "version"); save_opt(&type0.date, opts, "date"); @@ -1051,14 +1061,18 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) val = qemu_opt_get(opts, "release"); if (val) { if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) { - error_report("Invalid release"); - exit(1); + error_setg(errp, "Invalid release"); + return; } type0.have_major_minor = true; } return; case 1: - qemu_opts_validate(opts, qemu_smbios_type1_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type1_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt(&type1.manufacturer, opts, "manufacturer"); save_opt(&type1.product, opts, "product"); save_opt(&type1.version, opts, "version"); @@ -1069,14 +1083,18 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) val = qemu_opt_get(opts, "uuid"); if (val) { if (qemu_uuid_parse(val, &qemu_uuid) != 0) { - error_report("Invalid UUID"); - exit(1); + error_setg(errp, "Invalid UUID"); + return; } qemu_uuid_set = true; } return; case 2: - qemu_opts_validate(opts, qemu_smbios_type2_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type2_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt(&type2.manufacturer, opts, "manufacturer"); save_opt(&type2.product, opts, "product"); save_opt(&type2.version, opts, "version"); @@ -1085,7 +1103,11 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) save_opt(&type2.location, opts, "location"); return; case 3: - qemu_opts_validate(opts, qemu_smbios_type3_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type3_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt(&type3.manufacturer, opts, "manufacturer"); save_opt(&type3.version, opts, "version"); save_opt(&type3.serial, opts, "serial"); @@ -1093,7 +1115,11 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) save_opt(&type3.sku, opts, "sku"); return; case 4: - qemu_opts_validate(opts, qemu_smbios_type4_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type4_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt(&type4.sock_pfx, opts, "sock_pfx"); save_opt(&type4.manufacturer, opts, "manufacturer"); save_opt(&type4.version, opts, "version"); @@ -1102,11 +1128,19 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) save_opt(&type4.part, opts, "part"); return; case 11: - qemu_opts_validate(opts, qemu_smbios_type11_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type11_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt_list(&type11.nvalues, &type11.values, opts, "value"); return; case 17: - qemu_opts_validate(opts, qemu_smbios_type17_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type17_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt(&type17.loc_pfx, opts, "loc_pfx"); save_opt(&type17.bank, opts, "bank"); save_opt(&type17.manufacturer, opts, "manufacturer"); @@ -1116,12 +1150,12 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) type17.speed = qemu_opt_get_number(opts, "speed", 0); return; default: - error_report("Don't know how to build fields for SMBIOS type %ld", - type); - exit(1); + error_setg(errp, + "Don't know how to build fields for SMBIOS type %ld", + type); + return; } } - error_report("Must specify type= or file="); - exit(1); + error_setg(errp, "Must specify type= or file="); }