kexec-tools: make sure written is initialised in write_all()

I noticed this because of a compiler warning, and I guess it
was working as the memory that written is occupying happens
to be 0.

Signed-Off-By: Simon Horman <horms@verge.net.au>

1 files changed, 1 insertions, 1 deletions

diff --git a/kdump/kdump.c b/kdump/kdump.c
index e3a7c99..5614a46 100644
--- a/kdump/kdump.c
+++ b/kdump/kdump.c
@@ -188,7 +188,7 @@ static void *generate_new_headers(
 
 static void write_all(int fd, const void *buf, size_t count)
 {
-	ssize_t result, written;
+	ssize_t result, written = 0;
 	const char *ptr;
 	size_t left;
 	ptr = buf;