提交 a681887f 编写于 作者: P Peter Oberparleiter 提交者: Martin Schwidefsky

[S390] cio: fix cio_tpi ignoring adapter interrupts

Ensure that adapter interrupts are correctly processed when they are
retrieved using TEST PENDING INTERRUPTION.
Signed-off-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
上级 05873df9
......@@ -654,8 +654,8 @@ static struct io_subchannel_private console_priv;
static int console_subchannel_in_use;
/*
* Use tpi to get a pending interrupt, call the interrupt handler and
* return a pointer to the subchannel structure.
* Use cio_tpi to get a pending interrupt and call the interrupt handler.
* Return non-zero if an interrupt was processed, zero otherwise.
*/
static int cio_tpi(void)
{
......@@ -667,6 +667,10 @@ static int cio_tpi(void)
tpi_info = (struct tpi_info *)&S390_lowcore.subchannel_id;
if (tpi(NULL) != 1)
return 0;
if (tpi_info->adapter_IO) {
do_adapter_IO(tpi_info->isc);
return 1;
}
irb = (struct irb *)&S390_lowcore.irb;
/* Store interrupt response block to lowcore. */
if (tsch(tpi_info->schid, irb) != 0)
......
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