[PATCH 1/2] perf util: do_read should fail on EOF instead of busy-looping.

From: Pierre Habouzit
Date: Fri Aug 07 2009 - 08:25:59 EST


From: Pierre Habouzit <madcoder@xxxxxxxxxx>

Signed-off-by: Pierre Habouzit <madcoder@xxxxxxxxxx>
---
tools/perf/util/header.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 450384b..531f2b9 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -185,6 +185,8 @@ static void do_read(int fd, void *buf, size_t size)

if (ret < 0)
die("failed to read");
+ if (ret == 0)
+ die("failed to read: missing data");

size -= ret;
buf += ret;
--
1.6.4.rc2.183.g9085a

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