[PATCH] kconfig: Fix checking return value of 'fwrite'

Reinhard Tartler
2011-10-06T11:59:44Z

fwrite indicates '1' written member if a zero-length string is written.
---
scripts/kconfig/lkc.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index b633bdb..727d265 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -90,7 +90,7 @@ struct conf_printer {
/* confdata.c and expr.c */
static inline void xfwrite(const void *str, size_t len, size_t count, FILE *out)
{
- if (fwrite(str, len, count, out) < count)
+ if (len > 0 && fwrite(str, len, count, out) < count)
fprintf(stderr, "\nError in writing or end of file.\n");
}

--
1.7.0.4

--
Reinhard Tartler Department of Computer Science IV
Martensstr 1, 91058 Erlangen Germany, University of Erlangen-Nuremberg