[PATCH v2 1/3] usb: typec: tipd: add error message for vendor ID read failure

[Radhey Shyam Pandey]

Log an error when the vendor ID read fails or returns zero, including
the I2C error code and register value, and initialize the vendor ID
variable to avoid logging an uninitialized value on read failure.

Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xxxxxxx>
---
Changes for v2:
- Extend commit description to justify vid initialization.
---
 drivers/usb/typec/tipd/core.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c
index 43faec794b95..b282366b5326 100644
--- a/drivers/usb/typec/tipd/core.c
+++ b/drivers/usb/typec/tipd/core.c
@@ -1744,7 +1744,7 @@ static int tps6598x_probe(struct i2c_client *client)
 	struct tps6598x *tps;
 	struct fwnode_handle *fwnode;
 	u32 status;
-	u32 vid;
+	u32 vid = 0;
 	int ret;
 
 	data = i2c_get_match_data(client);
@@ -1772,8 +1772,11 @@ static int tps6598x_probe(struct i2c_client *client)
 
 	if (!device_is_compatible(tps->dev, "ti,tps25750")) {
 		ret = tps6598x_read32(tps, TPS_REG_VID, &vid);
-		if (ret < 0 || !vid)
+		if (ret < 0 || !vid) {
+			dev_err(tps->dev, "failed to read vendor ID: %d, vid: %#x\n",
+				ret, vid);
 			return -ENODEV;
+		}
 	}
 
 	/*
-- 
2.43.0