diff options
Diffstat (limited to 'drivers/s390/cio')
| -rw-r--r-- | drivers/s390/cio/blacklist.c | 3 | ||||
| -rw-r--r-- | drivers/s390/cio/cio.c | 8 |
2 files changed, 7 insertions, 4 deletions
diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c index 76058a5166ed..08c66035dd19 100644 --- a/drivers/s390/cio/blacklist.c +++ b/drivers/s390/cio/blacklist.c @@ -335,10 +335,9 @@ cio_ignore_write(struct file *file, const char __user *user_buf, return -EINVAL; if (user_len > 65536) user_len = 65536; - buf = vmalloc (user_len + 1); /* maybe better use the stack? */ + buf = vzalloc(user_len + 1); /* maybe better use the stack? */ if (buf == NULL) return -ENOMEM; - memset(buf, 0, user_len + 1); if (strncpy_from_user (buf, user_buf, user_len) < 0) { rc = -EFAULT; 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; 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) |
