diff options
Diffstat (limited to 'drivers/s390/cio/chsc_sch.c')
| -rw-r--r-- | drivers/s390/cio/chsc_sch.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c index cc5144b6f9d9..3b6f4adc5094 100644 --- a/drivers/s390/cio/chsc_sch.c +++ b/drivers/s390/cio/chsc_sch.c @@ -7,11 +7,13 @@ * */ +#include <linux/slab.h> #include <linux/device.h> #include <linux/module.h> #include <linux/uaccess.h> #include <linux/miscdevice.h> +#include <asm/compat.h> #include <asm/cio.h> #include <asm/chsc.h> #include <asm/isc.h> @@ -50,7 +52,7 @@ static void chsc_subchannel_irq(struct subchannel *sch) { struct chsc_private *private = sch->private; struct chsc_request *request = private->request; - struct irb *irb = (struct irb *)__LC_IRB; + struct irb *irb = (struct irb *)&S390_lowcore.irb; CHSC_LOG(4, "irb"); CHSC_LOG_HEX(4, irb, sizeof(*irb)); @@ -122,7 +124,7 @@ static int chsc_subchannel_prepare(struct subchannel *sch) * since we don't have a way to clear the subchannel and * cannot disable it with a request running. */ - cc = stsch(sch->schid, &schib); + cc = stsch_err(sch->schid, &schib); if (!cc && scsw_stctl(&schib.scsw)) return -EAGAIN; return 0; @@ -236,7 +238,7 @@ static int chsc_async(struct chsc_async_area *chsc_area, int ret = -ENODEV; char dbf[10]; - chsc_area->header.key = PAGE_DEFAULT_KEY; + chsc_area->header.key = PAGE_DEFAULT_KEY >> 4; while ((sch = chsc_get_next_subchannel(sch))) { spin_lock(sch->lock); private = sch->private; @@ -770,24 +772,30 @@ out_free: static long chsc_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { + void __user *argp; + CHSC_MSG(2, "chsc_ioctl called, cmd=%x\n", cmd); + if (is_compat_task()) + argp = compat_ptr(arg); + else + argp = (void __user *)arg; switch (cmd) { case CHSC_START: - return chsc_ioctl_start((void __user *)arg); + return chsc_ioctl_start(argp); case CHSC_INFO_CHANNEL_PATH: - return chsc_ioctl_info_channel_path((void __user *)arg); + return chsc_ioctl_info_channel_path(argp); case CHSC_INFO_CU: - return chsc_ioctl_info_cu((void __user *)arg); + return chsc_ioctl_info_cu(argp); case CHSC_INFO_SCH_CU: - return chsc_ioctl_info_sch_cu((void __user *)arg); + return chsc_ioctl_info_sch_cu(argp); case CHSC_INFO_CI: - return chsc_ioctl_conf_info((void __user *)arg); + return chsc_ioctl_conf_info(argp); case CHSC_INFO_CCL: - return chsc_ioctl_conf_comp_list((void __user *)arg); + return chsc_ioctl_conf_comp_list(argp); case CHSC_INFO_CPD: - return chsc_ioctl_chpd((void __user *)arg); + return chsc_ioctl_chpd(argp); case CHSC_INFO_DCAL: - return chsc_ioctl_dcal((void __user *)arg); + return chsc_ioctl_dcal(argp); default: /* unknown ioctl number */ return -ENOIOCTLCMD; } |