diff options
Diffstat (limited to 'arch/parisc/kernel/pdc_cons.c')
| -rw-r--r-- | arch/parisc/kernel/pdc_cons.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c index e7afc899d717..ccb68090781e 100644 --- a/arch/parisc/kernel/pdc_cons.c +++ b/arch/parisc/kernel/pdc_cons.c @@ -52,15 +52,30 @@ #include <linux/tty.h> #include <asm/pdc.h> /* for iodc_call() proto and friends */ +static spinlock_t pdc_console_lock = SPIN_LOCK_UNLOCKED; static void pdc_console_write(struct console *co, const char *s, unsigned count) { - pdc_iodc_print(s, count); + int i = 0; + unsigned long flags; + + spin_lock_irqsave(&pdc_console_lock, flags); + do { + i += pdc_iodc_print(s + i, count - i); + } while (i < count); + spin_unlock_irqrestore(&pdc_console_lock, flags); } int pdc_console_poll_key(struct console *co) { - return pdc_iodc_getc(); + int c; + unsigned long flags; + + spin_lock_irqsave(&pdc_console_lock, flags); + c = pdc_iodc_getc(); + spin_unlock_irqrestore(&pdc_console_lock, flags); + + return c; } static int pdc_console_setup(struct console *co, char *options) |