[03/10] scripts/basic/fixdep: Use the symbol "MAP_FAILED" in print_deps()
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Message ID 682bce8d-61cb-0e50-1a7e-93328e3d8c08@users.sourceforge.net
State New
Headers show

Commit Message

SF Markus Elfring Oct. 28, 2016, 8:33 a.m. UTC
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(-)

Patch
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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;
 	}