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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2015-01-05 10:10:14 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-01-08 10:02:52 +0100 |
| commit | a7e75d434b53b45ae60779903904d4fbdbd145a5 (patch) | |
| tree | 0a99249a4076bd0c1de0b0252fc593273ebd7e60 /arch/s390/kernel/sclp.S | |
| parent | s390/sclp: fix declaration of _sclp_print_early() (diff) | |
| download | linux-dev-a7e75d434b53b45ae60779903904d4fbdbd145a5.tar.xz linux-dev-a7e75d434b53b45ae60779903904d4fbdbd145a5.zip | |
s390/sclp: sign extend return value of _sclp_print_early()
_sclp_print_early() has a return value, but misses to sign extend it
if called from 64 bit code.
This is not really a bug, since currently no caller cares what the
return value is.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/sclp.S')
| -rw-r--r-- | arch/s390/kernel/sclp.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/kernel/sclp.S b/arch/s390/kernel/sclp.S index a41f2c99dcc8..7e77e03378f3 100644 --- a/arch/s390/kernel/sclp.S +++ b/arch/s390/kernel/sclp.S @@ -294,7 +294,8 @@ ENTRY(_sclp_print_early) #ifdef CONFIG_64BIT tm LC_AR_MODE_ID,1 jno .Lesa3 - lmh %r6,%r15,96(%r15) # store upper register halves + lgfr %r2,%r2 # sign extend return value + lmh %r6,%r15,96(%r15) # restore upper register halves ahi %r15,80 .Lesa3: #endif |