On Fri, Mar 15, K. Y. Srinivasan wrote:
> This driver has a user-level component (daemon) that invokes the appropriate
This change fixes a few compile errors:
hv_vss_daemon.c:64:15: warning: unknown escape sequence '\/'
hv_vss_daemon.c:64:15: warning: unknown escape sequence '\/'
hv_vss_daemon.c: In function 'vss_operate':
hv_vss_daemon.c:66: warning: 'return' with no value, in function returning non-void
hv_vss_daemon.c: In function 'main':
hv_vss_daemon.c:130: warning: ignoring return value of 'daemon', declared with attribute warn_unused_result
hv_vss_daemon.c: In function 'vss_operate':
hv_vss_daemon.c:47: warning: 'fs_op' may be used uninitialized in this function
Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
--- a/tools/hv/hv_vss_daemon.c 2013-03-22 17:06:41.000000000 +0100
+++ b/tools/hv/hv_vss_daemon.c 2013-03-22 17:09:41.000000000 +0100
@@ -51,7 +51,7 @@ static int vss_operate(int operation)
FILE *file;
char *p;
char *x;
- int error;
+ int error = -1;
switch (operation) {
case VSS_OP_FREEZE:
@@ -60,11 +60,13 @@ static int vss_operate(int operation)
case VSS_OP_THAW:
fs_op = "-u ";
break;
+ default:
+ goto out;
}
- file = popen("mount | awk '/^\/dev\// { print $3}'", "r");
+ file = popen("mount | awk '/^\\/dev\\// { print $3}'", "r");
if (file == NULL)
- return;
+ goto out;
while ((p = fgets(buf, sizeof(buf), file)) != NULL) {
x = strchr(p, '\n');
@@ -82,6 +84,7 @@ static int vss_operate(int operation)
syslog(LOG_INFO, "VSS cmd is %s\n", cmd);
error = system(cmd);
+out:
return error;
}
@@ -128,7 +131,9 @@ int main(void)
int op;
struct hv_vss_msg *vss_msg;
- daemon(1, 0);
+ if (daemon(1, 0))
+ return 1;
+
openlog("Hyper-V VSS", 0, LOG_USER);
syslog(LOG_INFO, "VSS starting; pid is:%d", getpid());
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