X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fplatforms%2Fpseries%2Fhvconsole.c;h=3f6a89b09816ee667b323214e3f8efbb949efad7;hb=b9377ffc3a03cde558d76349a262a1adbb6d3112;hp=138e128a3886b851d43c50fe1747aaadd6a57172;hpb=f333b3f111e9db76109e304df8ee777ace7fbf86;p=powerpc.git

diff --git a/arch/powerpc/platforms/pseries/hvconsole.c b/arch/powerpc/platforms/pseries/hvconsole.c
index 138e128a38..3f6a89b098 100644
--- a/arch/powerpc/platforms/pseries/hvconsole.c
+++ b/arch/powerpc/platforms/pseries/hvconsole.c
@@ -27,6 +27,7 @@
 #include <linux/module.h>
 #include <asm/hvcall.h>
 #include <asm/hvconsole.h>
+#include "plpar_wrappers.h"
 
 /**
  * hvc_get_chars - retrieve characters from firmware for denoted vterm adatper
@@ -40,9 +41,9 @@ int hvc_get_chars(uint32_t vtermno, char *buf, int count)
 {
 	unsigned long got;
 
-	if (plpar_hcall(H_GET_TERM_CHAR, vtermno, 0, 0, 0, &got,
-		(unsigned long *)buf, (unsigned long *)buf+1) == H_Success)
+	if (plpar_get_term_char(vtermno, &got, buf) == H_SUCCESS)
 		return got;
+
 	return 0;
 }
 
@@ -62,11 +63,16 @@ int hvc_put_chars(uint32_t vtermno, const char *buf, int count)
 	unsigned long *lbuf = (unsigned long *) buf;
 	long ret;
 
+
+	/* hcall will ret H_PARAMETER if 'count' exceeds firmware max.*/
+	if (count > MAX_VIO_PUT_CHARS)
+		count = MAX_VIO_PUT_CHARS;
+
 	ret = plpar_hcall_norets(H_PUT_TERM_CHAR, vtermno, count, lbuf[0],
 				 lbuf[1]);
-	if (ret == H_Success)
+	if (ret == H_SUCCESS)
 		return count;
-	if (ret == H_Busy)
+	if (ret == H_BUSY)
 		return 0;
 	return -EIO;
 }