gx1fb: properly alloc cmap and plug cmap leak
We weren't properly allocating the cmap for depths greater than 8bpp,
which caused pain for things like DirectFB. Also, we never freed the cmap
memory upon module unload..
Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Marco La Porta <marco-laporta@tiscali.it>
Cc: Jordan Crouse <jordan@cosmicpenguin.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/geode/gx1fb_core.c b/drivers/video/geode/gx1fb_core.c
index 751e491..f20eff8 100644
--- a/drivers/video/geode/gx1fb_core.c
+++ b/drivers/video/geode/gx1fb_core.c
@@ -136,13 +136,10 @@
{
struct geodefb_par *par = info->par;
- if (info->var.bits_per_pixel == 16) {
+ if (info->var.bits_per_pixel == 16)
info->fix.visual = FB_VISUAL_TRUECOLOR;
- fb_dealloc_cmap(&info->cmap);
- } else {
+ else
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
- fb_alloc_cmap(&info->cmap, 1<<info->var.bits_per_pixel, 0);
- }
info->fix.line_length = gx1_line_delta(info->var.xres, info->var.bits_per_pixel);
@@ -315,6 +312,10 @@
if (!par->panel_x)
par->enable_crt = 1; /* fall back to CRT if no panel is specified */
+ if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
+ framebuffer_release(info);
+ return NULL;
+ }
return info;
}
@@ -374,8 +375,11 @@
release_mem_region(gx1_gx_base() + 0x8300, 0x100);
}
- if (info)
+ if (info) {
+ fb_dealloc_cmap(&info->cmap);
framebuffer_release(info);
+ }
+
return ret;
}
@@ -395,6 +399,7 @@
iounmap(par->dc_regs);
release_mem_region(gx1_gx_base() + 0x8300, 0x100);
+ fb_dealloc_cmap(&info->cmap);
pci_set_drvdata(pdev, NULL);
framebuffer_release(info);