From: Kay Sievers <kay.sievers@suse.de>
Date: Thu, 16 Mar 2006 09:47:31 +0000 (+0100)
Subject: correct use of fcntl()
X-Git-Tag: 174~2333
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=f660222775b2603c3d4b5a7119a4daffff794b2c;hp=3e5e833253a0683935808c90498b6c639be955fe

correct use of fcntl()
---

diff --git a/udevd.c b/udevd.c
index 9340be14c..701165b9a 100644
--- a/udevd.c
+++ b/udevd.c
@@ -921,12 +921,24 @@ int main(int argc, char *argv[], char *envp[])
 		err("error getting pipes: %s", strerror(errno));
 		goto exit;
 	}
-	retval = fcntl(signal_pipe[READ_END], F_SETFL, O_NONBLOCK);
+
+	retval = fcntl(signal_pipe[READ_END], F_GETFL, 0);
+	if (retval < 0) {
+		err("error fcntl on read pipe: %s", strerror(errno));
+		goto exit;
+	}
+	retval = fcntl(signal_pipe[READ_END], F_SETFL, retval | O_NONBLOCK);
 	if (retval < 0) {
 		err("error fcntl on read pipe: %s", strerror(errno));
 		goto exit;
 	}
-	retval = fcntl(signal_pipe[WRITE_END], F_SETFL, O_NONBLOCK);
+
+	retval = fcntl(signal_pipe[WRITE_END], F_GETFL, 0);
+	if (retval < 0) {
+		err("error fcntl on write pipe: %s", strerror(errno));
+		goto exit;
+	}
+	retval = fcntl(signal_pipe[WRITE_END], F_SETFL, retval | O_NONBLOCK);
 	if (retval < 0) {
 		err("error fcntl on write pipe: %s", strerror(errno));
 		goto exit;