Jun 10 2015

HID: cypress: use swap() in cp_report_fixup() 

Author: Fabian Frederick <fabf@skynet.be>

Use kernel.h macro definition.

Thanks to Julia Lawall for Coccinelle scripting support.

Signed-off-by: Fabian Frederick 
Signed-off-by: Jiri Kosina 

---
 drivers/hid/hid-cypress.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)
 
diff --git a/drivers/hid/hid-cypress.c b/drivers/hid/hid-cypress.c
index c4ef3bc..1b764d1 100644
--- a/drivers/hid/hid-cypress.c
+++ b/drivers/hid/hid-cypress.c
@@ -41,13 +41,9 @@ static __u8 *cp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 
 	for (i = 0; i < *rsize - 4; i++)
 		if (rdesc[i] == 0x29 && rdesc[i + 2] == 0x19) {
-			__u8 tmp;
-
 			rdesc[i] = 0x19;
 			rdesc[i + 2] = 0x29;
-			tmp = rdesc[i + 3];
-			rdesc[i + 3] = rdesc[i + 1];
-			rdesc[i + 1] = tmp;
+			swap(rdesc[i + 3], rdesc[i + 1]);
 		}
 	return rdesc;
 }

qlambert