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Subject[PATCH 2/3] [media] dvb-ttusb-budget: Improve two size determinations in ttusb_probe()
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 20 Sep 2017 20:46:11 +0200

* The script "checkpatch.pl" pointed information out like the following.

ERROR: do not use assignment in if condition

Thus fix an affected source code place.

* Replace the specification of data structures by variable references
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c b/drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c
index 38394c9ecc67..fef3c8554e91 100644
--- a/drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c
+++ b/drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c
@@ -1657,7 +1657,8 @@ static int ttusb_probe(struct usb_interface *intf, const struct usb_device_id *i

if (intf->altsetting->desc.bInterfaceNumber != 1) return -ENODEV;

- if (!(ttusb = kzalloc(sizeof(struct ttusb), GFP_KERNEL)))
+ ttusb = kzalloc(sizeof(*ttusb), GFP_KERNEL);
+ if (!ttusb)
return -ENOMEM;

ttusb->dev = udev;
@@ -1692,7 +1693,7 @@ static int ttusb_probe(struct usb_interface *intf, const struct usb_device_id *i
ttusb->adapter.priv = ttusb;

/* i2c */
- memset(&ttusb->i2c_adap, 0, sizeof(struct i2c_adapter));
+ memset(&ttusb->i2c_adap, 0, sizeof(ttusb->i2c_adap));
strcpy(ttusb->i2c_adap.name, "TTUSB DEC");

i2c_set_adapdata(&ttusb->i2c_adap, ttusb);
--
2.14.1
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