kern/mips/arc/init: Add missing grub_strdup() failure check

If grub_strdup() fails, it returns NULL and passing NULL further down to
the code can lead to segmentation fault or an undefined behavior.

Signed-off-by: Avnish Chouhan <avnish@linux.ibm.com>
Reviewed-by: Sudhakar Kuppusamy <sudhakar@linux.ibm.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

diff --git a/grub-core/kern/mips/arc/init.c b/grub-core/kern/mips/arc/init.c
index 2ed3ff3191e70145b5af290977735e9813f8f576..2b76988c76d19ba768be8f0e01d06bda410fb233 100644 (file)
--- a/grub-core/kern/mips/arc/init.c
+++ b/grub-core/kern/mips/arc/init.c
@@ -403,6 +403,9 @@ grub_machine_get_bootlocation (char **device, char **path)
       if (!syspart)
        return;
       loaddev = grub_strdup (syspart);
+      if (loaddev == NULL)
+        return;
+
     }
 
   partptr = get_part (loaddev);