[PARISC] pdc_console: fix bizarre panic on boot
Commit 721fdf34167580ff98263c74cead8871d76936e6 introduced a subtle bug
by accidently removing the "static" from iodc_dbuf. This resulted in, what
appeared to be, a trap without *current set to a task. Probably the result of
a trap in real mode while calling firmware.
Also do other misc clean ups. Since the only input from firmware is non
blocking, share iodc_dbuf between input and output, and spinlock the
only callers.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
diff --git a/include/asm-parisc/pdc.h b/include/asm-parisc/pdc.h
index b340c42..9eaa794 100644
--- a/include/asm-parisc/pdc.h
+++ b/include/asm-parisc/pdc.h
@@ -645,7 +645,7 @@
void pdc_io_reset(void);
void pdc_io_reset_devices(void);
int pdc_iodc_getc(void);
-int pdc_iodc_print(unsigned char *str, unsigned count);
+int pdc_iodc_print(const unsigned char *str, unsigned count);
void pdc_emergency_unlock(void);
int pdc_sti_call(unsigned long func, unsigned long flags,