Merge branch 'fixes-davem' of master.kernel.org:/pub/scm/linux/kernel/git/linville...

[linux-2.6-omap-h63xx.git] / drivers / char / vt.c

diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 6650ae1c088f05d132325c1f64cffa7a255f4851..645ad9808982526cf8f7ae4fdf682e2a433ed72e 100644 (file)
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -158,7 +158,11 @@ static void blank_screen_t(unsigned long dummy);
 static void set_palette(struct vc_data *vc);
 
 static int printable;          /* Is console ready for printing? */
-static int default_utf8;
+#ifdef CONFIG_VT_UNICODE
+int default_utf8 = 1;
+#else
+int default_utf8;
+#endif
 module_param(default_utf8, int, S_IRUGO | S_IWUSR);
 
 /*
@@ -729,10 +733,9 @@ int vc_allocate(unsigned int currcons)     /* return 0 on success */
            /* although the numbers above are not valid since long ago, the
               point is still up-to-date and the comment still has its value
               even if only as a historical artifact.  --mj, July 1998 */
-           vc = kmalloc(sizeof(struct vc_data), GFP_KERNEL);
+           vc = kzalloc(sizeof(struct vc_data), GFP_KERNEL);
            if (!vc)
                return -ENOMEM;
-           memset(vc, 0, sizeof(*vc));
            vc_cons[currcons].d = vc;
            INIT_WORK(&vc_cons[currcons].SAK_work, vc_SAK);
            visual_init(vc, currcons, 1);
@@ -751,13 +754,15 @@ int vc_allocate(unsigned int currcons)    /* return 0 on success */
        return 0;
 }
 
-static inline int resize_screen(struct vc_data *vc, int width, int height)
+static inline int resize_screen(struct vc_data *vc, int width, int height,
+                               int user)
 {
        /* Resizes the resolution of the display adapater */
        int err = 0;
 
        if (vc->vc_mode != KD_GRAPHICS && vc->vc_sw->con_resize)
-               err = vc->vc_sw->con_resize(vc, width, height);
+               err = vc->vc_sw->con_resize(vc, width, height, user);
+
        return err;
 }
 
@@ -773,7 +778,7 @@ int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines)
        unsigned long old_origin, new_origin, new_scr_end, rlth, rrem, err = 0;
        unsigned int old_cols, old_rows, old_row_size, old_screen_size;
        unsigned int new_cols, new_rows, new_row_size, new_screen_size;
-       unsigned int end;
+       unsigned int end, user;
        unsigned short *newscreen;
 
        WARN_CONSOLE_UNLOCKED();
@@ -781,6 +786,9 @@ int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines)
        if (!vc)
                return -ENXIO;
 
+       user = vc->vc_resize_user;
+       vc->vc_resize_user = 0;
+
        if (cols > VC_RESIZE_MAXCOL || lines > VC_RESIZE_MAXROW)
                return -EINVAL;
 
@@ -801,7 +809,7 @@ int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines)
        old_row_size = vc->vc_size_row;
        old_screen_size = vc->vc_screenbuf_size;
 
-       err = resize_screen(vc, new_cols, new_rows);
+       err = resize_screen(vc, new_cols, new_rows, user);
        if (err) {
                kfree(newscreen);
                return err;
@@ -1991,8 +1999,7 @@ static int is_double_width(uint32_t ucs)
                { 0xFE10, 0xFE19 }, { 0xFE30, 0xFE6F }, { 0xFF00, 0xFF60 },
                { 0xFFE0, 0xFFE6 }, { 0x20000, 0x2FFFD }, { 0x30000, 0x3FFFD }
        };
-       return bisearch(ucs, double_width,
-               sizeof(double_width) / sizeof(*double_width) - 1);
+       return bisearch(ucs, double_width, ARRAY_SIZE(double_width) - 1);
 }
 
 /* acquires console_sem */
@@ -2989,8 +2996,24 @@ static int con_is_graphics(const struct consw *csw, int first, int last)
        return retval;
 }
 
-static int unbind_con_driver(const struct consw *csw, int first, int last,
-                            int deflt)
+/**
+ * unbind_con_driver - unbind a console driver
+ * @csw: pointer to console driver to unregister
+ * @first: first in range of consoles that @csw should be unbound from
+ * @last: last in range of consoles that @csw should be unbound from
+ * @deflt: should next bound console driver be default after @csw is unbound?
+ *
+ * To unbind a driver from all possible consoles, pass 0 as @first and
+ * %MAX_NR_CONSOLES as @last.
+ *
+ * @deflt controls whether the console that ends up replacing @csw should be
+ * the default console.
+ *
+ * RETURNS:
+ * -ENODEV if @csw isn't a registered console driver or can't be unregistered
+ * or 0 on success.
+ */
+int unbind_con_driver(const struct consw *csw, int first, int last, int deflt)
 {
        struct module *owner = csw->owner;
        const struct consw *defcsw = NULL;
@@ -3075,6 +3098,7 @@ err:
        return retval;
 
 }
+EXPORT_SYMBOL(unbind_con_driver);
 
 static int vt_bind(struct con_driver *con)
 {
@@ -3491,9 +3515,6 @@ void do_blank_screen(int entering_gfx)
                }
                return;
        }
-       if (blank_state != blank_normal_wait)
-               return;
-       blank_state = blank_off;
 
        /* entering graphics mode? */
        if (entering_gfx) {
@@ -3501,10 +3522,15 @@ void do_blank_screen(int entering_gfx)
                save_screen(vc);
                vc->vc_sw->con_blank(vc, -1, 1);
                console_blanked = fg_console + 1;
+               blank_state = blank_off;
                set_origin(vc);
                return;
        }
 
+       if (blank_state != blank_normal_wait)
+               return;
+       blank_state = blank_off;
+
        /* don't blank graphics */
        if (vc->vc_mode != KD_TEXT) {
                console_blanked = fg_console + 1;