2016-12-04 05:40:16

by Pan Bian

[permalink] [raw]
Subject: [PATCH 1/1] media: pci: meye: set error code on failures

From: Pan Bian <[email protected]>

The value of return variable ret is 0 on some error paths, for example,
when pci_resource_start() returns a NULL pointer. 0 means no error in
this context, which is contrary to the fact. This patch fixes the bug.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=189011

Signed-off-by: Pan Bian <[email protected]>
---
drivers/media/pci/meye/meye.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/media/pci/meye/meye.c b/drivers/media/pci/meye/meye.c
index ba887e8..115e141 100644
--- a/drivers/media/pci/meye/meye.c
+++ b/drivers/media/pci/meye/meye.c
@@ -1669,6 +1669,7 @@ static int meye_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
goto outenabledev;
}

+ ret = -EIO;
mchip_adr = pci_resource_start(meye.mchip_dev,0);
if (!mchip_adr) {
v4l2_err(v4l2_dev, "meye: mchip has no device base address\n");
--
1.9.1