Merged a number of bug fixes from the 2.4 pool.

arch/um/drivers/fd.c

@@ -30,7 +30,7 @@ void *fd_init(char *str, int device, struct chan_opts *opts)
 	}
 	str++;
 	n = strtoul(str, &end, 0);
-	if(*end != '\0'){
+	if((*end != '\0') || (end == str)){
 		printk("fd_init : couldn't parse file descriptor '%s'\n", str);
 		return(NULL);
 	}

arch/um/drivers/mcast_kern.c

@@ -92,7 +92,7 @@ int mcast_setup(char *str, char **mac_out, void *data)
 	
 	if(port_str != NULL){
 		n = simple_strtoul(port_str, &last, 10);
-		if(*last != '\0'){
+		if((*last != '\0') || (last == port_str)){
 			printk(KERN_ERR "mcast_setup - Bad port : '%s'\n", 
 			       port_str);
 			return(0);
@@ -102,7 +102,7 @@ int mcast_setup(char *str, char **mac_out, void *data)
 
 	if(ttl_str != NULL){
 		init->ttl = simple_strtoul(ttl_str, &last, 10);
-		if(*last != '\0'){
+		if((*last != '\0') || (last == ttl_str)){
 			printk(KERN_ERR "mcast_setup - Bad ttl : '%s'\n", 
 			       ttl_str);
 			return(0);

arch/um/drivers/port_user.c

@@ -40,7 +40,7 @@ void *port_init(char *str, int device, struct chan_opts *opts)
 	}
 	str++;
 	port = strtoul(str, &end, 0);
-	if(*end != '\0'){
+	if((*end != '\0') || (end == str)){
 		printk("port_init : couldn't parse port '%s'\n", str);
 		return(NULL);
 	}

arch/um/drivers/ubd_kern.c

@@ -218,7 +218,7 @@ static int ubd_setup_common(char *str, int *index_out)
 			return(0);
 		}
 		major = simple_strtoul(str, &end, 0);
-		if(*end != '\0'){
+		if((*end != '\0') || (end == str)){
 			printk(KERN_ERR 
 			       "ubd_setup : didn't parse major number\n");
 			return(1);
@@ -520,7 +520,10 @@ static int ubd_add(int n)
 	struct ubd *dev = &ubd_dev[n];
 	int err;
 
-	if (!dev->file || dev->is_dir)
+	if(dev->is_dir)
+		return(-EISDIR);
+
+	if (!dev->file)
 		return(-ENODEV);
 
 	if (ubd_open_dev(dev))
@@ -583,7 +586,7 @@ static int ubd_remove(char *str)
 		return(err);	/* it should be a number 0-7/a-h */
 
 	n = *str - '0';
-	if(n > MAX_DEV) 
+	if(n >= MAX_DEV) 
 		return(err);
 
 	dev = &ubd_dev[n];

arch/um/drivers/xterm.c

@@ -93,6 +93,9 @@ int xterm_open(int input, int output, int primary, void *d)
 			 "/usr/lib/uml/port-helper", "-uml-socket",
 			 file, NULL };
 
+	if(access(argv[4], X_OK))
+		argv[4] = "port-helper";
+
 	fd = mkstemp(file);
 	if(fd < 0){
 		printk("xterm_open : mkstemp failed, errno = %d\n", errno);

arch/um/kernel/exitcode.c

@@ -42,7 +42,7 @@ static int write_proc_exitcode(struct file *file, const char *buffer,
 	return(count);
 }
 
-int make_proc_exitcode(void)
+static int make_proc_exitcode(void)
 {
 	struct proc_dir_entry *ent;
 

arch/um/kernel/helper.c

@@ -86,7 +86,10 @@ int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv,
 		       errno);
 		return(-errno);
 	}
-	else if(n != 0)	pid = -err;
+	else if(n != 0){
+		waitpid(pid, NULL, 0);
+		pid = -err;
+	}
 
 	if(stack_out == NULL) free_stack(stack, 0);
         else *stack_out = stack;

arch/um/kernel/irq_user.c

@@ -188,7 +188,8 @@ int activate_fd(int irq, int fd, int type, void *dev_id)
 		pollfds_size++;
 	}
 
-	if(type == IRQ_WRITE) events = 0;
+	if(type == IRQ_WRITE) 
+		fd = -1;
 
 	pollfds[pollfds_num] = ((struct pollfd) { fd :	fd,
 						  events :	events,

arch/um/kernel/tty_log.c

@@ -103,7 +103,7 @@ static int __init set_tty_log_fd(char *name, int *add)
 	char *end;
 
 	tty_log_fd = strtoul(name, &end, 0);
-	if(*end != '\0'){
+	if((*end != '\0') || (end == name)){
 		printk("set_tty_log_fd - strtoul failed on '%s'\n", name);
 		tty_log_fd = -1;
 	}

arch/um/os-Linux/file.c

@@ -171,7 +171,8 @@ int os_pipe(int *fds, int stream, int close_on_exec)
 	int err, type = stream ? SOCK_STREAM : SOCK_DGRAM;
 
 	err = socketpair(AF_UNIX, type, 0, fds);
-	if(err) return(-errno);
+	if(err) 
+		return(-errno);
 
 	if(!close_on_exec)
 		return(0);

include/asm-um/system-generic.h

@@ -17,6 +17,7 @@
 
 extern void *switch_to(void *prev, void *next, void *last);
 
+extern int get_signals(void);
 extern int set_signals(int enable);
 extern int get_signals(void);
 extern void block_signals(void);