diff options
Diffstat (limited to 'arch/parisc/kernel/syscall.S')
| -rw-r--r-- | arch/parisc/kernel/syscall.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S index b29b76b42bb..d6616349289 100644 --- a/arch/parisc/kernel/syscall.S +++ b/arch/parisc/kernel/syscall.S @@ -164,7 +164,7 @@ linux_gateway_entry: #endif STREG %r2, TASK_PT_GR30(%r1) /* ... and save it */ - STREG %r20, TASK_PT_GR20(%r1) + STREG %r20, TASK_PT_GR20(%r1) /* Syscall number */ STREG %r21, TASK_PT_GR21(%r1) STREG %r22, TASK_PT_GR22(%r1) STREG %r23, TASK_PT_GR23(%r1) /* 4th argument */ @@ -527,6 +527,7 @@ lws_compare_and_swap: We *must* giveup this call and fail. */ ldw 4(%sr2,%r20), %r28 /* Load thread register */ + /* WARNING: If cr27 cycles to the same value we have problems */ mfctl %cr27, %r21 /* Get current thread register */ cmpb,<>,n %r21, %r28, cas_lock /* Called recursive? */ b lws_exit /* Return error! */ |