Re: [Libvirt-cim] [PATCH 6/8] Fix misuse of signed variables

"Eduardo Lima (Etrunko)" <eblima(a)linux.vnet.ibm.com&gt; Sent by: libvirt-cim-bounces(a)redhat.com 11/03/2011 10:48 AM Please respond to List for discussion and development of libvirt CIM

To libvirt-cim(a)redhat.com cc "Eduardo Lima \(Etrunko\)" <eblima(a)br.ibm.com&gt; Subject [Libvirt-cim] [PATCH 6/8] Fix misuse of signed variables From: Eduardo Lima (Etrunko) <eblima(a)br.ibm.com&gt; As revealed by Coverity scan report: https://bugzilla.redhat.com/show_bug.cgi?id=728245#c8 https://bugzilla.redhat.com/attachment.cgi?id=530435 Error: NEGATIVE_RETURNS: infostore.c:183: negative_return_fn: Function "open(filename, 66, 384)" returns a negative number. infostore.c:183: var_assign: Assigning: signed variable "isc->fd" =

infostore.c:214: negative_returns: "isc->fd" is passed to a parameter

cannot be negative. infostore.c:53: neg_sink_parm_call: Passing "ctx->fd" to "close", which

accept a negative. Error: NEGATIVE_RETURNS: Virt_ComputerSystemIndication.c:518: negative_return_fn: Function "platform_from_class(args->

returns a negative number. Virt_ComputerSystemIndication.c:503: return_negative_constant: Explicitly returning negative value "-1". Virt_ComputerSystemIndication.c:518: var_assign: Assigning: signed

"platform" = "platform_from_class". Virt_ComputerSystemIndication.c:539: negative_returns: Using variable "platform" as an index to array

Error: NEGATIVE_RETURNS: Virt_ComputerSystemIndication.c:518: negative_return_fn: Function "platform_from_class(args->

returns a negative number. Virt_ComputerSystemIndication.c:503: return_negative_constant: Explicitly returning negative value "-1". Virt_ComputerSystemIndication.c:518: var_assign: Assigning: signed

"platform" = "platform_from_class". Virt_ComputerSystemIndication.c:596: negative_returns: Using variable "platform" as an index to array "thread_id". Error: NEGATIVE_RETURNS: Virt_VSMigrationService.c:512: negative_return_fn: Function "mkstemp (filename)" returns a negative number. Virt_VSMigrationService.c:512: var_assign: Assigning: signed variable "fd" = "mkstemp". Virt_VSMigrationService.c:547: negative_returns: "fd" is passed to

that cannot be negative. Signed-off-by: Eduardo Lima (Etrunko) <eblima(a)br.ibm.com&gt; --- libxkutil/infostore.c | 4 +++- src/Virt_ComputerSystemIndication.c | 12 +++++++++--- src/Virt_VSMigrationService.c | 3 ++- 3 files changed, 14 insertions(+), 5 deletions(-) diff --git a/libxkutil/infostore.c b/libxkutil/infostore.c index 716dedd..dd1e38c 100644 --- a/libxkutil/infostore.c +++ b/libxkutil/infostore.c @@ -50,7 +50,9 @@ static void infostore_cleanup_ctx(struct infostore_ctx

{ xmlXPathFreeContext(ctx->xpathctx); xmlFreeDoc(ctx->doc); - close(ctx->fd); + + if (ctx->fd >= 0) + close(ctx->fd); free(ctx); } diff --git a/src/Virt_ComputerSystemIndication.c b/src/ Virt_ComputerSystemIndication.c index 337f20a..9b3b80b 100644 --- a/src/Virt_ComputerSystemIndication.c +++ b/src/Virt_ComputerSystemIndication.c @@ -518,11 +518,14 @@ static CMPI_THREAD_RETURN lifecycle_thread(void

char *prefix = class_prefix_name(args->classname); int platform = platform_from_class(args->classname); + if (prefix == NULL || platform == -1) + goto init_out; + conn = connect_by_classname(_BROKER, args->classname, &s); if (conn == NULL) { CU_DEBUG("Unable to start lifecycle thread: " "Failed to connect (cn: %s)", args->classname); - goto out; + goto conn_out; } pthread_mutex_lock(&lifecycle_mutex); @@ -591,16 +594,19 @@ static CMPI_THREAD_RETURN lifecycle_thread(void

} } - out: CU_DEBUG("Exiting CSI event loop (%s)", prefix); thread_id[platform] = 0; pthread_mutex_unlock(&lifecycle_mutex); stdi_free_ind_args(&args); - free(prefix); + + conn_out: virConnectClose(conn); + init_out: + free(prefix); + return NULL; } diff --git a/src/Virt_VSMigrationService.c

index 414feda..be9bb7c 100644 --- a/src/Virt_VSMigrationService.c +++ b/src/Virt_VSMigrationService.c @@ -544,7 +544,8 @@ static char *write_params(CMPIArray *array) if (file != NULL) fclose(file); - close(fd); + if (fd >= 0) + close(fd); return filename; } -- 1.7.4.4 _______________________________________________ Libvirt-cim mailing list Libvirt-cim(a)redhat.com https://www.redhat.com/mailman/listinfo/libvirt-cim