From: Colin Ian King <colin.k...@canonical.com>

The check for a zero retval is redundant as all paths that lead to
this point have set retval to an error return value that is non-zero.
Remove the redundant check.

Detected by CoverityScan, CID#102589 ("Logically dead code")

Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
 drivers/media/firewire/firedtv-fw.c  | 3 +++
 drivers/media/pci/cx18/cx18-driver.c | 2 --
 drivers/regulator/vctrl-regulator.c  | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/media/firewire/firedtv-fw.c 
b/drivers/media/firewire/firedtv-fw.c
index 92f4112d2e37..eed55be21836 100644
--- a/drivers/media/firewire/firedtv-fw.c
+++ b/drivers/media/firewire/firedtv-fw.c
@@ -271,6 +271,9 @@ static int node_probe(struct fw_unit *unit, const struct 
ieee1394_device_id *id)
 
        name_len = fw_csr_string(unit->directory, CSR_MODEL,
                                 name, sizeof(name));
+       if (name_len < 0)
+               return name_len;
+
        for (i = ARRAY_SIZE(model_names); --i; )
                if (strlen(model_names[i]) <= name_len &&
                    strncmp(name, model_names[i], name_len) == 0)
diff --git a/drivers/media/pci/cx18/cx18-driver.c 
b/drivers/media/pci/cx18/cx18-driver.c
index 8f314ca320c7..0c389a3fb4e5 100644
--- a/drivers/media/pci/cx18/cx18-driver.c
+++ b/drivers/media/pci/cx18/cx18-driver.c
@@ -1134,8 +1134,6 @@ static int cx18_probe(struct pci_dev *pci_dev,
 free_workqueues:
        destroy_workqueue(cx->in_work_queue);
 err:
-       if (retval == 0)
-               retval = -ENODEV;
        CX18_ERR("Error %d on initialization\n", retval);
 
        v4l2_device_unregister(&cx->v4l2_dev);
diff --git a/drivers/regulator/vctrl-regulator.c 
b/drivers/regulator/vctrl-regulator.c
index 78de002037c7..044e5a5ca163 100644
--- a/drivers/regulator/vctrl-regulator.c
+++ b/drivers/regulator/vctrl-regulator.c
@@ -340,7 +340,7 @@ static int vctrl_init_vtable(struct platform_device *pdev)
                }
        }
 
-       if (rdesc->n_voltages == 0) {
+       if (rdesc->n_voltages <= 0) {
                dev_err(&pdev->dev, "invalid configuration\n");
                return -EINVAL;
        }
-- 
2.17.0

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