Commit 592ddc9f authored by Sean Young's avatar Sean Young Committed by Mauro Carvalho Chehab

[media] sir_ir: infinite loop in interrupt handler

Since this driver does no detection of hardware, it might be used with
a non-sir port. Escape out if we are spinning.
Reported-by: default avatarkbuild test robot <fengguang.wu@intel.com>
Signed-off-by: default avatarSean Young <sean@mess.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent dd8245f4
......@@ -183,9 +183,15 @@ static irqreturn_t sir_interrupt(int irq, void *dev_id)
static unsigned long delt;
unsigned long deltintr;
unsigned long flags;
int counter = 0;
int iir, lsr;
while ((iir = inb(io + UART_IIR) & UART_IIR_ID)) {
if (++counter > 256) {
dev_err(&sir_ir_dev->dev, "Trapped in interrupt");
break;
}
switch (iir & UART_IIR_ID) { /* FIXME toto treba preriedit */
case UART_IIR_MSI:
(void)inb(io + UART_MSR);
......
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