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Commit 083e4721 authored by Jarod Wilson's avatar Jarod Wilson Committed by Mauro Carvalho Chehab
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V4L/DVB: IR/imon: remove dead IMON_KEY_RELEASE_OFFSET 



On Tue, May 04, 2010 at 06:06:41PM +0200, Dan Carpenter wrote:
> On Tue, May 04, 2010 at 10:03:18AM -0400, Jarod Wilson wrote:
> > @@ -1205,7 +1204,7 @@ static u32 imon_panel_key_lookup(u64 hw_code)
> >  		if (imon_panel_key_table[i].hw_code == (code | 0xffee))
> >  			break;
> >
> > -	keycode = imon_panel_key_table[i % IMON_KEY_RELEASE_OFFSET].keycode;
> > +	keycode = imon_panel_key_table[i].keycode;
> >
> >  	return keycode;
> >  }
>
> There is still potentially a problem here because if we don't hit the
> break statement, then we're one past the end of the array.

D'oh. Okay, here's v2, should fix that buglet too.

This hack was used when the imon driver was using internal key lookup
routines, but became dead weight when the driver was converted to use
ir-core's key lookup routines. These bits simply didn't get removed,
drop 'em now.

Pointed out by Dan Carpenter.

v2: fix possible attempt to access beyond end of key table array,
also pointed out by Dan.

Signed-off-by: default avatarJarod Wilson <jarod@redhat.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 9986da29

drivers/media/IR/imon.c

+6 −6
Original line number Diff line number Diff line
@@ -55,7 +55,6 @@ 
#define BIT_DURATION	250	/* each bit received is 250us */



#define IMON_CLOCK_ENABLE_PACKETS	2

#define IMON_KEY_RELEASE_OFFSET		1000



/*** P R O T O T Y P E S ***/
@@ -1199,13 +1198,14 @@ static u32 imon_panel_key_lookup(u64 hw_code) 
{

	int i;

	u64 code = be64_to_cpu(hw_code);

	u32 keycode;

	u32 keycode = KEY_RESERVED;



	for (i = 0; i < ARRAY_SIZE(imon_panel_key_table); i++)

		if (imon_panel_key_table[i].hw_code == (code | 0xffee))

	for (i = 0; i < ARRAY_SIZE(imon_panel_key_table); i++) {

		if (imon_panel_key_table[i].hw_code == (code | 0xffee)) {

			keycode = imon_panel_key_table[i].keycode;

			break;



	keycode = imon_panel_key_table[i % IMON_KEY_RELEASE_OFFSET].keycode;

		}

	}



	return keycode;

}