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-rw-r--r--src/supervision/s6-notifyoncheck.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/supervision/s6-notifyoncheck.c b/src/supervision/s6-notifyoncheck.c
index a4d0ab1..1be61d2 100644
--- a/src/supervision/s6-notifyoncheck.c
+++ b/src/supervision/s6-notifyoncheck.c
@@ -36,7 +36,7 @@ static inline int read_uint (char const *file, unsigned int *fd)
 {
   char buf[UINT_FMT + 1] ;
   ssize_t r = openreadnclose_nb(file, buf, UINT_FMT) ;
-  if (r < 0) return -1 ;
+  if (r == -1) return -1 ;
   buf[byte_chr(buf, r, '\n')] = 0 ;
   return !!uint0_scan(buf, fd) ;
 }