patch 7.4.1194

Problem:    Compiler warning for not using return value of fwrite().
Solution:   Return OK/FAIL. (Charles Campbell)

Author: brammool

src/channel.c

@@ -560,21 +560,22 @@ channel_close(int idx)
 
 /*
  * Store "buf[len]" on channel "idx".
+ * Returns OK or FAIL.
  */
-    void
+    int
 channel_save(int idx, char_u *buf, int len)
 {
     queue_T *node;
     queue_T *head = &channels[idx].ch_head;
 
     node = (queue_T *)alloc(sizeof(queue_T));
     if (node == NULL)
-	return;	    /* out of memory */
+	return FAIL;	    /* out of memory */
     node->buffer = alloc(len + 1);
     if (node->buffer == NULL)
     {
 	vim_free(node);
-	return;	    /* out of memory */
+	return FAIL;	    /* out of memory */
     }
     mch_memmove(node->buffer, buf, (size_t)len);
     node->buffer[len] = NUL;
@@ -594,9 +595,11 @@ channel_save(int idx, char_u *buf, int len)
     if (debugfd != NULL)
     {
 	fprintf(debugfd, "RECV on %d: ", idx);
-	fwrite(buf, len, 1, debugfd);
+	if (fwrite(buf, len, 1, debugfd) != 1)
+	    return FAIL;
 	fprintf(debugfd, "\n");
     }
+    return OK;
 }
 
 /*

src/proto/channel.pro

@@ -8,7 +8,7 @@ void channel_will_block(int idx);
 int channel_decode_json(char_u *msg, typval_T *tv);
 int channel_is_open(int idx);
 void channel_close(int idx);
-void channel_save(int idx, char_u *buf, int len);
+int channel_save(int idx, char_u *buf, int len);
 char_u *channel_peek(int idx);
 char_u *channel_get(int idx);
 int channel_collapse(int idx);

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1194,
 /**/
     1193,
 /**/