X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Ffstab-generator%2Ffstab-generator.c;h=a0a87a15fce305a85c7b2db884729e7c7263ba4d;hb=df3e57f542cf680cd891dfbd85615885b54770dc;hp=d5f9db49ca8b6016afd34bb5548070bad0ee5067;hpb=790838e4f16831f2bb06aeb845b9e2fb0f1d28dd;p=elogind.git

diff --git a/src/fstab-generator/fstab-generator.c b/src/fstab-generator/fstab-generator.c
index d5f9db49c..a0a87a15f 100644
--- a/src/fstab-generator/fstab-generator.c
+++ b/src/fstab-generator/fstab-generator.c
@@ -389,13 +389,15 @@ static int add_mount(const char *what, const char *where, const char *type, cons
 }
 
 static int parse_fstab(const char *prefix, bool initrd) {
-        FILE *f;
         _cleanup_free_ char *fstab_path = NULL;
+        FILE *f;
         int r = 0;
         struct mntent *me;
 
-        errno = 0;
-        fstab_path = strjoin(prefix, "/etc/fstab", NULL);
+        fstab_path = strjoin(strempty(prefix), "/etc/fstab", NULL);
+        if (!fstab_path)
+                return log_oom();
+
         f = setmntent(fstab_path, "r");
         if (!f) {
                 if (errno == ENOENT)
@@ -614,7 +616,7 @@ int main(int argc, char *argv[]) {
         if (!arg_enabled)
                 return (r < 0) ? EXIT_FAILURE : EXIT_SUCCESS;
 
-        k = parse_fstab("", false);
+        k = parse_fstab(NULL, false);
 
         if (in_initrd())
                 l = parse_fstab("/sysroot", true);