Merge branch 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git...

[pandora-kernel.git] / drivers / media / video / ivtv / ivtvfb.c

diff --git a/drivers/media/video/ivtv/ivtvfb.c b/drivers/media/video/ivtv/ivtvfb.c
index 1724745..6b7c9c8 100644 (file)
--- a/drivers/media/video/ivtv/ivtvfb.c
+++ b/drivers/media/video/ivtv/ivtvfb.c
@@ -247,7 +247,7 @@ static int ivtvfb_set_osd_coords(struct ivtv *itv, const struct ivtv_osd_coords
 
 static int ivtvfb_set_display_window(struct ivtv *itv, struct v4l2_rect *ivtv_window)
 {
-       int osd_height_limit = itv->is_50hz ? 576 : 480;
+       int osd_height_limit = itv->is_out_50hz ? 576 : 480;
 
        /* Only fail if resolution too high, otherwise fudge the start coords. */
        if ((ivtv_window->height > osd_height_limit) || (ivtv_window->width > IVTV_OSD_MAX_WIDTH))
@@ -471,9 +471,9 @@ static int ivtvfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long ar
                        vblank.flags = FB_VBLANK_HAVE_COUNT |FB_VBLANK_HAVE_VCOUNT |
                                        FB_VBLANK_HAVE_VSYNC;
                        trace = read_reg(IVTV_REG_DEC_LINE_FIELD) >> 16;
-                       if (itv->is_50hz && trace > 312)
+                       if (itv->is_out_50hz && trace > 312)
                                trace -= 312;
-                       else if (itv->is_60hz && trace > 262)
+                       else if (itv->is_out_60hz && trace > 262)
                                trace -= 262;
                        if (trace == 1)
                                vblank.flags |= FB_VBLANK_VSYNCING;
@@ -656,7 +656,7 @@ static int _ivtvfb_check_var(struct fb_var_screeninfo *var, struct ivtv *itv)
        IVTVFB_DEBUG_INFO("ivtvfb_check_var\n");
 
        /* Set base references for mode calcs. */
-       if (itv->is_50hz) {
+       if (itv->is_out_50hz) {
                pixclock = 84316;
                hlimit = 776;
                vlimit = 591;
@@ -784,12 +784,12 @@ static int _ivtvfb_check_var(struct fb_var_screeninfo *var, struct ivtv *itv)
           If the margins are too large, just center the screen
           (enforcing margins causes too many problems) */
 
-       if (var->left_margin + var->xres > IVTV_OSD_MAX_WIDTH + 1) {
+       if (var->left_margin + var->xres > IVTV_OSD_MAX_WIDTH + 1)
                var->left_margin = 1 + ((IVTV_OSD_MAX_WIDTH - var->xres) / 2);
-       }
-       if (var->upper_margin + var->yres > (itv->is_50hz ? 577 : 481)) {
-               var->upper_margin = 1 + (((itv->is_50hz ? 576 : 480) - var->yres) / 2);
-       }
+
+       if (var->upper_margin + var->yres > (itv->is_out_50hz ? 577 : 481))
+               var->upper_margin = 1 + (((itv->is_out_50hz ? 576 : 480) -
+                       var->yres) / 2);
 
        /* Maintain overall 'size' for a constant refresh rate */
        var->right_margin = hlimit - var->left_margin - var->xres;
@@ -836,7 +836,12 @@ static int ivtvfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *inf
        u32 osd_pan_index;
        struct ivtv *itv = (struct ivtv *) info->par;
 
-       osd_pan_index = (var->xoffset + (var->yoffset * var->xres_virtual))*var->bits_per_pixel/8;
+       if (var->yoffset + info->var.yres > info->var.yres_virtual ||
+           var->xoffset + info->var.xres > info->var.xres_virtual)
+               return -EINVAL;
+
+       osd_pan_index = var->yoffset * info->fix.line_length
+                     + var->xoffset * info->var.bits_per_pixel / 8;
        write_reg(osd_pan_index, 0x02A0C);
 
        /* Pass this info back the yuv handler */
@@ -1003,19 +1008,21 @@ static int ivtvfb_init_vidmode(struct ivtv *itv)
        /* Hardware coords start at 0, user coords start at 1. */
        osd_left--;
 
-       start_window.left = osd_left >= 0 ? osd_left : ((IVTV_OSD_MAX_WIDTH - start_window.width) / 2);
+       start_window.left = osd_left >= 0 ?
+                osd_left : ((IVTV_OSD_MAX_WIDTH - start_window.width) / 2);
 
        oi->display_byte_stride =
                        start_window.width * oi->bytes_per_pixel;
 
        /* Vertical size & position */
 
-       max_height = itv->is_50hz ? 576 : 480;
+       max_height = itv->is_out_50hz ? 576 : 480;
 
        if (osd_yres > max_height)
                osd_yres = max_height;
 
-       start_window.height = osd_yres ? osd_yres : itv->is_50hz ? 480 : 400;
+       start_window.height = osd_yres ?
+               osd_yres : itv->is_out_50hz ? 480 : 400;
 
        /* Check vertical start (osd_upper). */
        if (osd_upper + start_window.height > max_height + 1) {