adulau/aha
1
0
Fork 0
mirror of https://github.com/adulau/aha.git synced 2024-12-28 11:46:19 +00:00
Code Issues Projects Releases Packages Wiki Activity

HID: Move dereferences below a NULL test

Browse source 
If the NULL test is necessary, then the dereferences should be moved below
the NULL test.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
type T;
expression E,E1;
identifier i,fld;
statement S;
@@

- T i = E->fld;
+ T i;
  ... when != E=E1
      when != i
  if (E == NULL||...) S
+ i = E->fld;
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Julia Lawall 2009-07-19 17:26:13 +02:00 committed by Jiri Kosina
parent 4859484b09
commit 76c317d6e5
1 changed files with 4 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/hid/hid-core.c
View file

@ -1075,14 +1075,16 @@ EXPORT_SYMBOL_GPL(hid_report_raw_event);
*/
int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
{
struct hid_report_enum *report_enum = hid->report_enum + type;
struct hid_driver *hdrv = hid->driver;
struct hid_report_enum *report_enum;
struct hid_driver *hdrv;
struct hid_report *report;
unsigned int i;
int ret;
if (!hid || !hid->driver)
return -ENODEV;
report_enum = hid->report_enum + type;
hdrv = hid->driver;
if (!size) {
dbg_hid("empty report\n");