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-rw-r--r--drivers/s390/cio/cio.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index cbde448f9947..eb3140ee821e 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -654,8 +654,8 @@ static struct io_subchannel_private console_priv;
654static int console_subchannel_in_use; 654static int console_subchannel_in_use;
655 655
656/* 656/*
657 * Use tpi to get a pending interrupt, call the interrupt handler and 657 * Use cio_tpi to get a pending interrupt and call the interrupt handler.
658 * return a pointer to the subchannel structure. 658 * Return non-zero if an interrupt was processed, zero otherwise.
659 */ 659 */
660static int cio_tpi(void) 660static int cio_tpi(void)
661{ 661{
@@ -667,6 +667,10 @@ static int cio_tpi(void)
667 tpi_info = (struct tpi_info *)&S390_lowcore.subchannel_id; 667 tpi_info = (struct tpi_info *)&S390_lowcore.subchannel_id;
668 if (tpi(NULL) != 1) 668 if (tpi(NULL) != 1)
669 return 0; 669 return 0;
670 if (tpi_info->adapter_IO) {
671 do_adapter_IO(tpi_info->isc);
672 return 1;
673 }
670 irb = (struct irb *)&S390_lowcore.irb; 674 irb = (struct irb *)&S390_lowcore.irb;
671 /* Store interrupt response block to lowcore. */ 675 /* Store interrupt response block to lowcore. */
672 if (tsch(tpi_info->schid, irb) != 0) 676 if (tsch(tpi_info->schid, irb) != 0)