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kbuild: fixdep: Check fstat(2) return value

Coverity has recently added a check that will find when we don't check
the return code from fstat(2).  Copy/paste the checking logic that
print_deps() has with an appropriate re-wording of the perror() message.

[ Linux commit : 46fe94ad18aa7ce6b3dad8c035fb538942020f2b ]

Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Michal Marek <mmarek@suse.com>
Tom Rini hace 8 años
padre
commit
c1420f8b2b
Se han modificado 1 ficheros con 5 adiciones y 1 borrados
  1. 5 1
      scripts/basic/fixdep.c

+ 5 - 1
scripts/basic/fixdep.c

@@ -296,7 +296,11 @@ static void do_config_file(const char *filename)
 		perror(filename);
 		exit(2);
 	}
-	fstat(fd, &st);
+	if (fstat(fd, &st) < 0) {
+		fprintf(stderr, "fixdep: error fstat'ing config file: ");
+		perror(filename);
+		exit(2);
+	}
 	if (st.st_size == 0) {
 		close(fd);
 		return;