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-rw-r--r--src/supervision/s6-supervise.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/supervision/s6-supervise.c b/src/supervision/s6-supervise.c
index cc6779a..2060cac 100644
--- a/src/supervision/s6-supervise.c
+++ b/src/supervision/s6-supervise.c
@@ -82,7 +82,7 @@ static inline void announce (void)
static int read_file (char const *file, char *buf, size_t n)
{
ssize_t r = openreadnclose_nb(file, buf, n) ;
- if (r < 0)
+ if (r == -1)
{
if (errno != ENOENT) strerr_warnwu2sys("open ", file) ;
return 0 ;