1 files changed, 4 insertions, 0 deletions
diff --git a/fs/fs.c b/fs/fs.c
index 51a7411b69..56b822b6a0 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -503,6 +503,10 @@ int read(int fd, void *buf, size_t count)
 
 	if (f->pos + count > f->size)
 		count = f->size - f->pos;
+
+	if (!count)
+		return 0;
+
 	errno = fsdrv->read(dev, f, buf, count);
 
 	if (errno > 0)