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Input: wistron - do not crash if BIOS does not support interface

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offset can never be < 0 because it has type size_t.  The driver
currently oopses on insmod if BIOS does not support the interface,
instead of refusing to load.

Signed-off-by: Miloslav Trmac <mitr@volny.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Miloslav Trmac 2006-01-10 01:59:07 -05:00 committed by Dmitry Torokhov
parent ebbac7dde2
commit c28c358367
1 changed files with 3 additions and 3 deletions
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6
drivers/input/misc/wistron_btns.c
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@ -92,11 +92,11 @@ static void call_bios(struct regs *regs)
preempt_enable();
}
static size_t __init locate_wistron_bios(void __iomem *base)
static ssize_t __init locate_wistron_bios(void __iomem *base)
{
static const unsigned char __initdata signature[] =
{ 0x42, 0x21, 0x55, 0x30 };
size_t offset;
ssize_t offset;
for (offset = 0; offset < 0x10000; offset += 0x10) {
if (check_signature(base + offset, signature,
@ -109,7 +109,7 @@ static size_t __init locate_wistron_bios(void __iomem *base)
static int __init map_bios(void)
{
void __iomem *base;
size_t offset;
ssize_t offset;
u32 entry_point;
base = ioremap(0xF0000, 0x10000); /* Can't fail */