lightnvm: return the correct return value

When memdup_user returns an error, memdup_user has two different return
values, use PTR_ERR to get the correct return value.

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Matias Bjørling <matias.bjorling@wdc.com>
Link: https://lore.kernel.org/r/20210413105257.159260-3-matias.bjorling@wdc.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 28ddcaa..42774be 100644 (file)
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -1257,7 +1257,7 @@ static long nvm_ioctl_info(struct file *file, void __user *arg)
 
        info = memdup_user(arg, sizeof(struct nvm_ioctl_info));
        if (IS_ERR(info))
-               return -EFAULT;
+               return PTR_ERR(info);
 
        info->version[0] = NVM_VERSION_MAJOR;
        info->version[1] = NVM_VERSION_MINOR;