tree-wide: check if return value of lseek() and friends is negative

We usually check return value of syscalls or glibc functions by it is
negative or not, something like that `if (stat(path, &st) < 0)`.
Let's also use the same style for lseek() and friends even the type of
their return value is off_t.

Note, fseeko() returns int, instead of off_t.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/journal-remote/journal-gatewayd.c b/src/journal-remote/journal-gatewayd.c
index 980b98137e..09194710cb 100644
--- a/src/journal-remote/journal-gatewayd.c
+++ b/src/journal-remote/journal-gatewayd.c
@@ -233,7 +233,7 @@ static ssize_t request_reader_entries(
                 }
 
                 sz = ftello(m->tmp);
-                if (sz == (off_t) -1) {
+                if (sz < 0) {
                         log_error_errno(errno, "Failed to retrieve file position: %m");
                         return MHD_CONTENT_READER_END_WITH_ERROR;
                 }
@@ -582,7 +582,7 @@ static ssize_t request_reader_fields(
                 }
 
                 sz = ftello(m->tmp);
-                if (sz == (off_t) -1) {
+                if (sz < 0) {
                         log_error_errno(errno, "Failed to retrieve file position: %m");
                         return MHD_CONTENT_READER_END_WITH_ERROR;
                 }