commit 7bad7c4646ee8fd8d6e6ed0ffd3ddbb0c1b41a2f
author Elliott Hughes <enh@google.com> Tue Apr 28 17:24:24 2015 -0700
committer Elliott Hughes <enh@google.com> Wed Apr 29 17:46:43 2015 -0700
tree e2c357667b0e76e6fa5a43c7a7951c872c373e9c
parent 8c389e9c769c8632cf16c0794f1e84f49996077c

Check all lseek calls succeed.

Also add missing TEMP_FAILURE_RETRYs on read, write, and lseek.

Bug: http://b/20625546
Change-Id: I03b198e11c1921b35518ee2dd005a7cfcf4fd94b

ui.cpp

diff --git a/ui.cpp b/ui.cpp
index dca325f..1a0b079 100644
--- a/ui.cpp
+++ b/ui.cpp
@@ -251,7 +251,7 @@
 
     char buf;
     // USB is connected if android_usb state is CONNECTED or CONFIGURED.
-    int connected = (read(fd, &buf, 1) == 1) && (buf == 'C');
+    int connected = (TEMP_FAILURE_RETRY(read(fd, &buf, 1)) == 1) && (buf == 'C');
     if (close(fd) < 0) {
         printf("failed to close /sys/class/android_usb/android0/state: %s\n",
                strerror(errno));