Fixed the loops so they call os_{read,write}_file.

Made got_sigio volatile.

1 files changed, 3 insertions, 3 deletions

diff --git a/arch/um/kernel/sigio_user.c b/arch/um/kernel/sigio_user.c
index 250fdfb..acbd8c7 100644
--- a/arch/um/kernel/sigio_user.c
+++ b/arch/um/kernel/sigio_user.c
@@ -25,7 +25,7 @@ int pty_output_sigio = 0;
 int pty_close_sigio = 0;
 
 /* Used as a flag during SIGIO testing early in boot */
-static int got_sigio = 0;
+static volatile int got_sigio = 0;
 
 void __init handler(int sig)
 {
@@ -104,10 +104,10 @@ static void tty_output(int master, int slave)
 
 	memset(buf, 0, sizeof(buf));
 
-	while(write(master, buf, sizeof(buf)) > 0) ;
+	while(os_write_file(master, buf, sizeof(buf)) > 0) ;
 	if(errno != EAGAIN)
 		panic("check_sigio : write failed, errno = %d\n", errno);
-	while(((n = read(slave, buf, sizeof(buf))) > 0) && !got_sigio) ;
+	while(((n = os_read_file(slave, buf, sizeof(buf))) > 0) && !got_sigio) ;
 
 	if(got_sigio){
 		printk("Yes\n");