From 23a76c37594d3d423963c7b8610b64367e3ff9d8 Mon Sep 17 00:00:00 2001
From: Michel Daenzer <michel@daenzer.net>
Date: Wed, 23 Apr 2003 14:21:17 +0000
Subject: [PATCH] deal correctly with read() from the DRM failing

---
 libdrm/xf86drm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libdrm/xf86drm.c b/libdrm/xf86drm.c
index e1280921..a5bb8050 100644
--- a/libdrm/xf86drm.c
+++ b/libdrm/xf86drm.c
@@ -1460,7 +1460,7 @@ static void drmSIGIOHandler(int interrupt, void *closure)
 #if 0
 	    fprintf(stderr, "Trying %d\n", entry->fd);
 #endif
-	    if ((count = read(entry->fd, buf, sizeof(buf)))) {
+	    if ((count = read(entry->fd, buf, sizeof(buf))) > 0) {
 		buf[count] = '\0';
 #if 0
 		fprintf(stderr, "Got %s\n", buf);