[PATCH -next] tcmu: fix error return code in tcmu_configure_device()

[Wei Yongjun]

Fix to return error code -ENOMEM from the kzalloc() error handling
case instead of 0, as done elsewhere in this function.

Fixes: fabe6a59cc5a ("tcmu: allow max block and global max blocks to be 
settable")
Signed-off-by: Wei Yongjun <weiyongj...@huawei.com>
---
 drivers/target/target_core_user.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/target/target_core_user.c 
b/drivers/target/target_core_user.c
index bac08bc..2edd242 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -1705,8 +1705,10 @@ static int tcmu_configure_device(struct se_device *dev)
 
        udev->data_bitmap = kzalloc(BITS_TO_LONGS(udev->max_blocks) *
                                    sizeof(unsigned long), GFP_KERNEL);
-       if (!udev->data_bitmap)
+       if (!udev->data_bitmap) {
+               ret = -ENOMEM;
                goto err_bitmap_alloc;
+       }
 
        udev->mb_addr = vzalloc(CMDR_SIZE);
        if (!udev->mb_addr) {