(read_avail_input): Don't set nread to -1

if we loop around in the loop that calls read.

1 files changed, 7 insertions, 4 deletions

diff --git a/src/keyboard.c b/src/keyboard.c
index 47092b339fe..7a0e2fa1f17 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -3059,23 +3059,26 @@ read_avail_input (expected)
       /* Now read; for one reason or another, this will not block.  */
       while (1)
         {
-          nread = read (fileno (stdin), cbuf, nread);
+          int value = read (fileno (stdin), cbuf, nread);
 #ifdef AIX
           /* The kernel sometimes fails to deliver SIGHUP for ptys.
              This looks incorrect, but it isn't, because _BSD causes
              O_NDELAY to be defined in fcntl.h as O_NONBLOCK,
              and that causes a value other than 0 when there is no input.  */
-          if (nread == 0)
+          if (value == 0)
             kill (SIGHUP, 0);
 #endif
           /* Retry the read if it is interrupted.  */
-          if (nread >= 0
+          if (value >= 0
               || ! (errno == EAGAIN || errno == EFAULT
 #ifdef EBADSLT
                     || errno == EBADSLT
 #endif
                     ))
-            break;
+            {
+              nread = value;
+              break;
+            }
         }
 
 #ifndef FIONREAD