[PATCH] close clobbers mmap's errno in read_cache

From

Alex Riesen <raa.lkml@gmail.com>

Date

Oct 7, 2005, 21:45 UTC

Message-ID

<20051007214551.GA8893@steel.home>

Save errno before close(fd) for strerror in die().

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>

--- a/read-cache.c	2005-10-03 09:16:31.000000000 +0200
+++ b/read-cache.c	2005-10-07 23:23:40.000000000 +0200
@@ -482,9 +482,10 @@ int read_cache(void)
 		if (size >= sizeof(struct cache_header) + 20)
 			map = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
 	}
+	i = errno;
 	close(fd);
 	if (map == MAP_FAILED)
-		die("index file mmap failed (%s)", strerror(errno));
+		die("index file mmap failed (%s)", strerror(i));
 
 	hdr = map;
 	if (verify_hdr(hdr, size) < 0)