[PATCH -next] applicom: fix some err codes returned by ac_ioctl

[Xu Jia]

When cmd > 6 or copy_to_user() fail, The variable 'ret' would not be 
returned back. Fix the 'ret' set but not used.

Signed-off-by: Xu Jia <xuji...@huawei.com>
---
 drivers/char/applicom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/applicom.c b/drivers/char/applicom.c
index 14b2d8034c51..0ab765143354 100644
--- a/drivers/char/applicom.c
+++ b/drivers/char/applicom.c
@@ -839,7 +839,7 @@ static long ac_ioctl(struct file *file, unsigned int cmd, 
unsigned long arg)
        Dummy = readb(apbs[IndexCard].RamIO + VERS);
        kfree(adgl);
        mutex_unlock(&ac_mutex);
-       return 0;
+       return ret;
 
 err:
        if (warncount) {
-- 
2.25.1