Fix: compare write() return value to size

[lttng-tools.git] / src / bin / lttng-sessiond / main.c

diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index 477a9413b71692d8630572dc8ab6de49b5534bad..237a2cf8d75a3f3ee8dc1a68c7c63dfccc1526b2 100644 (file)
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -1326,9 +1326,11 @@ static void *thread_dispatch_ust_registration(void *data)
                         * at some point in time or wait to the end of the world :)
                         */
                        if (apps_cmd_pipe[1] >= 0) {
-                               ret = write(apps_cmd_pipe[1], ust_cmd,
-                                               sizeof(struct ust_command));
-                               if (ret < 0) {
+                               do {
+                                       ret = write(apps_cmd_pipe[1], ust_cmd,
+                                                       sizeof(struct ust_command));
+                               } while (ret < 0 && errno == EINTR);
+                               if (ret < 0 || ret != sizeof(struct ust_command)) {
                                        PERROR("write apps cmd pipe");
                                        if (errno == EBADF) {
                                                /*