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HID: uhid: avoid magic-numbers when setting strings

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Avoid hard-coding the target buffer sizes and use sizeof() instead. This
also makes us future-proof to buffer-extensions later on.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
David Herrmann 2014-07-29 17:14:18 +02:00 committed by Jiri Kosina
parent 41c4a46423
commit 25be7fe2be
1 changed files with 7 additions and 7 deletions
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14
drivers/hid/uhid.c
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@ -363,7 +363,7 @@ static int uhid_dev_create2(struct uhid_device *uhid,
const struct uhid_event *ev)
{
struct hid_device *hid;
size_t rd_size;
size_t rd_size, len;
void *rd_data;
int ret;
@ -387,12 +387,12 @@ static int uhid_dev_create2(struct uhid_device *uhid,
goto err_free;
}
strncpy(hid->name, ev->u.create2.name, 127);
hid->name[127] = 0;
strncpy(hid->phys, ev->u.create2.phys, 63);
hid->phys[63] = 0;
strncpy(hid->uniq, ev->u.create2.uniq, 63);
hid->uniq[63] = 0;
len = min(sizeof(hid->name), sizeof(ev->u.create2.name)) - 1;
strncpy(hid->name, ev->u.create2.name, len);
len = min(sizeof(hid->phys), sizeof(ev->u.create2.phys)) - 1;
strncpy(hid->phys, ev->u.create2.phys, len);
len = min(sizeof(hid->uniq), sizeof(ev->u.create2.uniq)) - 1;
strncpy(hid->uniq, ev->u.create2.uniq, len);
hid->ll_driver = &uhid_hid_driver;
hid->bus = ev->u.create2.bus;