diff options
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/cio/cio.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index b471ac4a1bf..ae1bf231d08 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -880,19 +880,15 @@ static void cio_reset_pgm_check_handler(void) static int stsch_reset(struct subchannel_id schid, volatile struct schib *addr) { int rc; - register struct subchannel_id reg1 asm ("1") = schid; pgm_check_occured = 0; s390_reset_pgm_handler = cio_reset_pgm_check_handler; + rc = stsch(schid, addr); + s390_reset_pgm_handler = NULL; - asm volatile( - " stsch 0(%2)\n" - " ipm %0\n" - " srl %0,28" - : "=d" (rc) - : "d" (reg1), "a" (addr), "m" (*addr) : "memory", "cc"); + /* The program check handler could have changed pgm_check_occured */ + barrier(); - s390_reset_pgm_handler = NULL; if (pgm_check_occured) return -EIO; else |