From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxxxxxxxx>
---
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
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