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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-09-04 09:22:54 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-09-04 09:22:54 -0700 |
| commit | a6cbfa1e6d38c4b3ab0ce7e3aea4bb4e744f24b8 (patch) | |
| tree | 8960e571a398b5d32e72bdb9c89ce965daa870ab /drivers/media/rc/sir_ir.c | |
| parent | f5308d1b83eba20e69df5e0926ba7257c8dd9074 (diff) | |
| parent | 08d6ac9ee5fedd82040bc878705981b67a116a3f (diff) | |
Merge branch 'next' into for-linus
Prepare input updates for 4.14 merge window.
Diffstat (limited to 'drivers/media/rc/sir_ir.c')
| -rw-r--r-- | drivers/media/rc/sir_ir.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/media/rc/sir_ir.c b/drivers/media/rc/sir_ir.c index e12ec50bf0bf..90a5f8fd5eea 100644 --- a/drivers/media/rc/sir_ir.c +++ b/drivers/media/rc/sir_ir.c @@ -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); |