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| author | Thomas Gleixner <tglx@linutronix.de> | 2018-08-05 16:39:29 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-08-05 16:39:29 +0200 |
| commit | f2701b77bbd992f3df4631de8493f21db0830452 (patch) | |
| tree | b05b2bf8b47002ae81c79aaa9de2a311b8ee075e /drivers/xen/manage.c | |
| parent | 18b57ce2eb8c8b9a24174a89250cf5f57c76ecdc (diff) | |
| parent | acb1872577b346bd15ab3a3f8dff780d6cca4b70 (diff) | |
| download | linux-f2701b77bbd992f3df4631de8493f21db0830452.tar.bz2 | |
Merge 4.18-rc7 into master to pick up the KVM dependcy
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/xen/manage.c')
| -rw-r--r-- | drivers/xen/manage.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index 8835065029d3..c93d8ef8df34 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -289,8 +289,15 @@ static void sysrq_handler(struct xenbus_watch *watch, const char *path, return; } - if (sysrq_key != '\0') - xenbus_printf(xbt, "control", "sysrq", "%c", '\0'); + if (sysrq_key != '\0') { + err = xenbus_printf(xbt, "control", "sysrq", "%c", '\0'); + if (err) { + pr_err("%s: Error %d writing sysrq in control/sysrq\n", + __func__, err); + xenbus_transaction_end(xbt, 1); + return; + } + } err = xenbus_transaction_end(xbt, 0); if (err == -EAGAIN) @@ -342,7 +349,12 @@ static int setup_shutdown_watcher(void) continue; snprintf(node, FEATURE_PATH_SIZE, "feature-%s", shutdown_handlers[idx].command); - xenbus_printf(XBT_NIL, "control", node, "%u", 1); + err = xenbus_printf(XBT_NIL, "control", node, "%u", 1); + if (err) { + pr_err("%s: Error %d writing %s\n", __func__, + err, node); + return err; + } } return 0; |