diff options
| author | Paul Mackerras | 2007-12-21 22:21:08 +1100 |
|---|---|---|
| committer | Paul Mackerras | 2007-12-21 22:21:08 +1100 |
| commit | c2a7dcad9f0d92d7a96e735abb8bec7b9c621536 (patch) | |
| tree | bf9b20fdd5ab07e5b0e4e0b95c6a3dbab1005cb9 /arch/powerpc/platforms/iseries | |
| parent | 373a6da165ac3012a74fd072da340eabca55d031 (diff) | |
| parent | ea67db4cdbbf7f4e74150e71da0984e25121f500 (diff) | |
Merge branch 'linux-2.6'
Diffstat (limited to 'arch/powerpc/platforms/iseries')
| -rw-r--r-- | arch/powerpc/platforms/iseries/lpevents.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/iseries/lpevents.c b/arch/powerpc/platforms/iseries/lpevents.c index 02c142227b51..e5b40e3e0082 100644 --- a/arch/powerpc/platforms/iseries/lpevents.c +++ b/arch/powerpc/platforms/iseries/lpevents.c @@ -121,6 +121,7 @@ void process_hvlpevents(void) { struct HvLpEvent * event; + restart: /* If we have recursed, just return */ if (!spin_trylock(&hvlpevent_queue.hq_lock)) return; @@ -146,8 +147,20 @@ void process_hvlpevents(void) if (event->xType < HvLpEvent_Type_NumTypes && lpEventHandler[event->xType]) lpEventHandler[event->xType](event); - else - printk(KERN_INFO "Unexpected Lp Event type=%d\n", event->xType ); + else { + u8 type = event->xType; + + /* + * Don't printk in the spinlock as printk + * may require ack events form the HV to send + * any characters there. + */ + hvlpevent_clear_valid(event); + spin_unlock(&hvlpevent_queue.hq_lock); + printk(KERN_INFO + "Unexpected Lp Event type=%d\n", type); + goto restart; + } hvlpevent_clear_valid(event); } else if (hvlpevent_queue.hq_overflow_pending) |