Commit c28c3583 authored by Miloslav Trmac's avatar Miloslav Trmac Committed by Dmitry Torokhov

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

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: default avatarMiloslav Trmac <mitr@volny.cz>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent ebbac7dd
......@@ -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 */
......
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