diff options
Diffstat (limited to 'drivers/s390/cio/ioasm.h')
| -rw-r--r-- | drivers/s390/cio/ioasm.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/s390/cio/ioasm.h b/drivers/s390/cio/ioasm.h index 4d80fc67a06b..1aec5ae5dbd6 100644 --- a/drivers/s390/cio/ioasm.h +++ b/drivers/s390/cio/ioasm.h @@ -138,13 +138,15 @@ static inline int tpi(struct tpi_info *addr) static inline int chsc(void *chsc_area) { typedef struct { char _[4096]; } addr_type; - int cc; + int cc = -EIO; asm volatile( " .insn rre,0xb25f0000,%2,0\n" - " ipm %0\n" + "0: ipm %0\n" " srl %0,28\n" - : "=d" (cc), "=m" (*(addr_type *) chsc_area) + "1:\n" + EX_TABLE(0b, 1b) + : "+d" (cc), "=m" (*(addr_type *) chsc_area) : "d" (chsc_area), "m" (*(addr_type *) chsc_area) : "cc"); return cc; |