um: Do not unlock mutex that is not hold.

Return error instead of trying to unlock a mutex that is not hold.

Signed-off-by: Daniel Walter <dwalter@google.com>
Reviewed-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Acked-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index aca09be2373e..33c1cd6a12ac 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -276,14 +276,14 @@ static int ubd_setup_common(char *str, int *index_out, char **error_out)
                 str++;
                 if(!strcmp(str, "sync")){
                         global_openflags = of_sync(global_openflags);
-                        goto out1;
+                        return err;
                 }
 
                 err = -EINVAL;
                 major = simple_strtoul(str, &end, 0);
                 if((*end != '\0') || (end == str)){
                         *error_out = "Didn't parse major number";
-                        goto out1;
+                        return err;
                 }
 
                 mutex_lock(&ubd_lock);