1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index 0d504971ed4c..1b9a6e17e3dc 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -974,8 +974,8 @@ static bool efivarfs_valid_name(const char *str, int len)
         if (len < GUID_LEN + 2)
                 return false;
 
-        /* GUID should be right after the first '-' */
-        if (s - 1 != strchr(str, '-'))
+        /* GUID must be preceded by a '-' */
+        if (*(s - 1) != '-')
                 return false;
 
         /*