Staging: hv: util: kvp: Fix the reported OSVersion string

The current win7 host does not like it when we return the
complete kernel release information. Conform to what the host
expects.
Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: NHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/tools/hv_kvp_daemon.c

@@ -118,6 +118,15 @@ void kvp_get_os_info(void)
 	os_build = uts_buf.release;
 	processor_arch = uts_buf.machine;
 
+	/*
+	 * The current windows host (win7) expects the build
+	 * string to be of the form: x.y.z
+	 * Strip additional information we may have.
+	 */
+	p = strchr(os_build, '-');
+	if (p)
+		*p = '\0';
+
 	file = fopen("/etc/SuSE-release", "r");
 	if (file != NULL)
 		goto kvp_osinfo_found;