diff mbox

hvc_xen: avoid uninitialized variable warning

Message ID 5566EDC6020000780007E67F@mail.emea.novell.com (mailing list archive)
State Not Applicable
Headers show

Commit Message

Jan Beulich May 28, 2015, 8:28 a.m. UTC 
Older compilers don't recognize that "v" can't be used uninitialized;
other code using hvm_get_parameter() zeros the value too, so follow
suit here.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
---
 drivers/tty/hvc/hvc_xen.c         |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

Comments

David Vrabel May 28, 2015, 10:38 a.m. UTC | #1 
On 28/05/15 09:28, Jan Beulich wrote:
> Older compilers don't recognize that "v" can't be used uninitialized;
> other code using hvm_get_parameter() zeros the value too, so follow
> suit here.

Applied to for-linus-4.2, thanks.

David
diff mbox

Patch

--- 4.1-rc5/drivers/tty/hvc/hvc_xen.c
+++ 4.1-rc5-xen-unint-warnings/drivers/tty/hvc/hvc_xen.c
@@ -302,7 +302,7 @@  static int xen_initial_domain_console_in
 static void xen_console_update_evtchn(struct xencons_info *info)
 {
 	if (xen_hvm_domain()) {
-		uint64_t v;
+		uint64_t v = 0;
 		int err;
 
 		err = hvm_get_parameter(HVM_PARAM_CONSOLE_EVTCHN, &v);