Remove error checking after using vshMalloc.

vshMalloc and friends always exit() on allocation failure,
so there is no reason to do checking for NULL in the code
that uses it.
Signed-off-by: NChris Lalancette <clalance@redhat.com>

tools/virsh.c

@@ -1629,8 +1629,6 @@ cmdSchedinfo(vshControl *ctl, const vshCmd *cmd)
 
     if (nparams) {
         params = vshMalloc(ctl, sizeof(virSchedParameter)* nparams);
-        if (params == NULL)
-            goto cleanup;
 
         memset(params, 0, sizeof(virSchedParameter)* nparams);
         ret = virDomainGetSchedulerParameters(dom, params, &nparams);
@@ -7909,51 +7907,40 @@ cmdAttachInterface(vshControl *ctl, const vshCmd *cmd)
 
     /* Make XML of interface */
     tmp = vshMalloc(ctl, 1);
-    if (!tmp) goto cleanup;
     buf = vshMalloc(ctl, strlen(type) + 25);
-    if (!buf) goto cleanup;
     sprintf(buf, "    <interface type='%s'>\n" , type);
 
     tmp = vshRealloc(ctl, tmp, strlen(source) + 28);
-    if (!tmp) goto cleanup;
     if (typ == 1) {
         sprintf(tmp, "      <source network='%s'/>\n", source);
     } else if (typ == 2) {
         sprintf(tmp, "      <source bridge='%s'/>\n", source);
     }
     buf = vshRealloc(ctl, buf, strlen(buf) + strlen(tmp) + 1);
-    if (!buf) goto cleanup;
     strcat(buf, tmp);
 
     if (target != NULL) {
         tmp = vshRealloc(ctl, tmp, strlen(target) + 24);
-        if (!tmp) goto cleanup;
         sprintf(tmp, "      <target dev='%s'/>\n", target);
         buf = vshRealloc(ctl, buf, strlen(buf) + strlen(tmp) + 1);
-        if (!buf) goto cleanup;
         strcat(buf, tmp);
     }
 
     if (mac != NULL) {
         tmp = vshRealloc(ctl, tmp, strlen(mac) + 25);
-        if (!tmp) goto cleanup;
         sprintf(tmp, "      <mac address='%s'/>\n", mac);
         buf = vshRealloc(ctl, buf, strlen(buf) + strlen(tmp) + 1);
-        if (!buf) goto cleanup;
         strcat(buf, tmp);
     }
 
     if (script != NULL) {
         tmp = vshRealloc(ctl, tmp, strlen(script) + 25);
-        if (!tmp) goto cleanup;
         sprintf(tmp, "      <script path='%s'/>\n", script);
         buf = vshRealloc(ctl, buf, strlen(buf) + strlen(tmp) + 1);
-        if (!buf) goto cleanup;
         strcat(buf, tmp);
     }
 
     buf = vshRealloc(ctl, buf, strlen(buf) + 19);
-    if (!buf) goto cleanup;
     strcat(buf, "    </interface>\n");
 
     if (vshCommandOptBool(cmd, "persistent")) {
@@ -8181,9 +8168,7 @@ cmdAttachDisk(vshControl *ctl, const vshCmd *cmd)
 
     /* Make XML of disk */
     tmp = vshMalloc(ctl, 1);
-    if (!tmp) goto cleanup;
     buf = vshMalloc(ctl, 23);
-    if (!buf) goto cleanup;
     if (isFile) {
         sprintf(buf, "    <disk type='file'");
     } else {
@@ -8192,72 +8177,56 @@ cmdAttachDisk(vshControl *ctl, const vshCmd *cmd)
 
     if (type) {
         tmp = vshRealloc(ctl, tmp, strlen(type) + 13);
-        if (!tmp) goto cleanup;
         sprintf(tmp, " device='%s'>\n", type);
     } else {
         tmp = vshRealloc(ctl, tmp, 3);
-        if (!tmp) goto cleanup;
         sprintf(tmp, ">\n");
     }
     buf = vshRealloc(ctl, buf, strlen(buf) + strlen(tmp) + 1);
-    if (!buf) goto cleanup;
     strcat(buf, tmp);
 
     if (driver) {
         tmp = vshRealloc(ctl, tmp, strlen(driver) + 22);
-        if (!tmp) goto cleanup;
         sprintf(tmp, "      <driver name='%s'", driver);
     } else {
         tmp = vshRealloc(ctl, tmp, 25);
-        if (!tmp) goto cleanup;
         sprintf(tmp, "      <driver name='phy'");
     }
     buf = vshRealloc(ctl, buf, strlen(buf) + strlen(tmp) + 1);
-    if (!buf) goto cleanup;
     strcat(buf, tmp);
 
     if (subdriver) {
         tmp = vshRealloc(ctl, tmp, strlen(subdriver) + 12);
-        if (!tmp) goto cleanup;
         sprintf(tmp, " type='%s'/>\n", subdriver);
     } else {
         tmp = vshRealloc(ctl, tmp, 4);
-        if (!tmp) goto cleanup;
         sprintf(tmp, "/>\n");
     }
     buf = vshRealloc(ctl, buf, strlen(buf) + strlen(tmp) + 1);
-    if (!buf) goto cleanup;
     strcat(buf, tmp);
 
     tmp = vshRealloc(ctl, tmp, strlen(source) + 25);
-    if (!tmp) goto cleanup;
     if (isFile) {
         sprintf(tmp, "      <source file='%s'/>\n", source);
     } else {
         sprintf(tmp, "      <source dev='%s'/>\n", source);
     }
     buf = vshRealloc(ctl, buf, strlen(buf) + strlen(tmp) + 1);
-    if (!buf) goto cleanup;
     strcat(buf, tmp);
 
     tmp = vshRealloc(ctl, tmp, strlen(target) + 24);
-    if (!tmp) goto cleanup;
     sprintf(tmp, "      <target dev='%s'/>\n", target);
     buf = vshRealloc(ctl, buf, strlen(buf) + strlen(tmp) + 1);
-    if (!buf) goto cleanup;
     strcat(buf, tmp);
 
     if (mode != NULL) {
         tmp = vshRealloc(ctl, tmp, strlen(mode) + 11);
-        if (!tmp) goto cleanup;
         sprintf(tmp, "      <%s/>\n", mode);
         buf = vshRealloc(ctl, buf, strlen(buf) + strlen(tmp) + 1);
-        if (!buf) goto cleanup;
         strcat(buf, tmp);
     }
 
     buf = vshRealloc(ctl, buf, strlen(buf) + 13);
-    if (!buf) goto cleanup;
     strcat(buf, "    </disk>\n");
 
     if (vshCommandOptBool(cmd, "persistent")) {
@@ -8600,12 +8569,7 @@ editWriteToTempFile (vshControl *ctl, const char *doc)
     const char *tmpdir;
     int fd;
 
-    ret = malloc (PATH_MAX);
-    if (!ret) {
-        vshError(ctl, _("malloc: failed to allocate temporary file name: %s"),
-                 strerror(errno));
-        return NULL;
-    }
+    ret = vshMalloc(ctl, PATH_MAX);
 
     tmpdir = getenv ("TMPDIR");
     if (!tmpdir) tmpdir = "/tmp";