swaybar: fix errno handling in status_handle_readable

If getline fails once, it was not reset before the next getline
call. errno is only overwritten by getline on error.

(cherry picked from commit 414950bbc8e833362a689cc11720855e8edd1323)

1 files changed, 1 insertions, 1 deletions

diff --git a/swaybar/status_line.c b/swaybar/status_line.c
index a97f3525..2e9bb7f1 100644
--- a/swaybar/status_line.c
+++ b/swaybar/status_line.c
@@ -117,11 +117,11 @@ bool status_handle_readable(struct status_line *status) {
                 status->text = status->buffer;
                 // intentional fall-through
         case PROTOCOL_TEXT:
-                errno = 0;
                 while (true) {
                         if (status->buffer[read_bytes - 1] == '\n') {
                                 status->buffer[read_bytes - 1] = '\0';
                         }
+                        errno = 0;
                         read_bytes = getline(&status->buffer,
                                         &status->buffer_size, status->read);
                         if (errno == EAGAIN) {