diff options
| -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 b471ac4a1bf6..ae1bf231d089 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) | |||
| 880 | static int stsch_reset(struct subchannel_id schid, volatile struct schib *addr) | 880 | static int stsch_reset(struct subchannel_id schid, volatile struct schib *addr) |
| 881 | { | 881 | { |
| 882 | int rc; | 882 | int rc; |
| 883 | register struct subchannel_id reg1 asm ("1") = schid; | ||
| 884 | 883 | ||
| 885 | pgm_check_occured = 0; | 884 | pgm_check_occured = 0; |
| 886 | s390_reset_pgm_handler = cio_reset_pgm_check_handler; | 885 | s390_reset_pgm_handler = cio_reset_pgm_check_handler; |
| 886 | rc = stsch(schid, addr); | ||
| 887 | s390_reset_pgm_handler = NULL; | ||
| 887 | 888 | ||
| 888 | asm volatile( | 889 | /* The program check handler could have changed pgm_check_occured */ |
| 889 | " stsch 0(%2)\n" | 890 | barrier(); |
| 890 | " ipm %0\n" | ||
| 891 | " srl %0,28" | ||
| 892 | : "=d" (rc) | ||
| 893 | : "d" (reg1), "a" (addr), "m" (*addr) : "memory", "cc"); | ||
| 894 | 891 | ||
| 895 | s390_reset_pgm_handler = NULL; | ||
| 896 | if (pgm_check_occured) | 892 | if (pgm_check_occured) |
| 897 | return -EIO; | 893 | return -EIO; |
| 898 | else | 894 | else |
