[syslinux] [PATCH 1/2] linux/syslinux.c: Silence warnings

[Gene Cumm]

From: Gene Cumm <gene.cumm at gmail.com>

linux/syslinux.c: Silence warnings from GCC with asprintf's attribute
warn_unused_result in certain glibc versions/patches.  Assign it to a
variable and ignore it as the string is already tested for null before
using it.

Signed-off-by: Gene Cumm <gene.cumm at gmail.com>

---

diff --git a/libinstaller/setadv.c b/libinstaller/setadv.c
index c891b87..e9847e7 100644
--- a/libinstaller/setadv.c
+++ b/libinstaller/setadv.c
@@ -182,8 +182,9 @@ int read_adv(const char *path, const char *cfg)
     int fd = -1;
     struct stat st;
     int err = 0;
+    int ret;

-    asprintf(&file, "%s%s%s",
+    ret = asprintf(&file, "%s%s%s",
             path, path[0] && path[strlen(path) - 1] == '/' ? "" : "/", cfg);

     if (!file) {
diff --git a/linux/syslinux.c b/linux/syslinux.c
index 888df3d..3a51f7e 100644
--- a/linux/syslinux.c
+++ b/linux/syslinux.c
@@ -276,12 +276,13 @@ int main(int argc, char *argv[])
     int mnt_cookie;
     int patch_sectors;
     int i;
+    int ret;

     mypid = getpid();
     umask(077);
     parse_options(argc, argv, MODE_SYSLINUX);

-    asprintf(&subdir, "%s%s",
+    ret = asprintf(&subdir, "%s%s",
             opt.directory[0] == '/' ? "" : "/", opt.directory);
     if (!subdir) {
        perror(program);