1 files changed, 7 insertions, 1 deletions

diff --git a/libbb/full_write.c b/libbb/full_write.c
index 7bbacb8ac..7503c8b42 100644
--- a/libbb/full_write.c
+++ b/libbb/full_write.c
@@ -24,8 +24,14 @@ ssize_t full_write(int fd, const void *buf, size_t len)
         while (len) {
                 cc = safe_write(fd, buf, len);
 
-                if (cc < 0)
+                if (cc < 0) {
+                        if (total) {
+                                /* we already wrote some! */
+                                /* user can do another write to know the error code */
+                                return total;
+                        }
                         return cc;      /* write() returns -1 on failure. */
+                }
 
                 total += cc;
                 buf = ((const char *)buf) + cc;