[PATCH 03/10] scripts/basic/fixdep: Use the symbol "MAP_FAILED" in print_deps()

SF Markus Elfring
2016-10-28T08:33:41Z

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Thu, 27 Oct 2016 18:18:54 +0200

Check the return value from a call of the function "mmap" by using
the preprocessor symbol "MAP_FAILED".

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
scripts/basic/fixdep.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index c9ce3e3..0dcec29 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -417,7 +417,7 @@ static void print_deps(void)
goto close_fd;
}
map = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
- if ((long) map = -1) {
+ if (map = MAP_FAILED) {
perror("fixdep: mmap");
goto close_fd;
}
--
2.10.1