提交 175b39fb 编写于 作者: A Andres Salomon 提交者: Linus Torvalds

stifb: check fb_alloc_cmap return value and handle failure properly

Signed-off-by: NAndres Salomon <dilinger@debian.org>
Acked-by: NKrzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 c2312427
......@@ -1262,24 +1262,25 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
info->flags = FBINFO_DEFAULT;
info->pseudo_palette = &fb->pseudo_palette;
/* This has to been done !!! */
fb_alloc_cmap(&info->cmap, NR_PALETTE, 0);
/* This has to be done !!! */
if (fb_alloc_cmap(&info->cmap, NR_PALETTE, 0))
goto out_err1;
stifb_init_display(fb);
if (!request_mem_region(fix->smem_start, fix->smem_len, "stifb fb")) {
printk(KERN_ERR "stifb: cannot reserve fb region 0x%04lx-0x%04lx\n",
fix->smem_start, fix->smem_start+fix->smem_len);
goto out_err1;
goto out_err2;
}
if (!request_mem_region(fix->mmio_start, fix->mmio_len, "stifb mmio")) {
printk(KERN_ERR "stifb: cannot reserve sti mmio region 0x%04lx-0x%04lx\n",
fix->mmio_start, fix->mmio_start+fix->mmio_len);
goto out_err2;
goto out_err3;
}
if (register_framebuffer(&fb->info) < 0)
goto out_err3;
goto out_err4;
sti->info = info; /* save for unregister_framebuffer() */
......@@ -1297,13 +1298,14 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
return 0;
out_err3:
out_err4:
release_mem_region(fix->mmio_start, fix->mmio_len);
out_err2:
out_err3:
release_mem_region(fix->smem_start, fix->smem_len);
out_err2:
fb_dealloc_cmap(&info->cmap);
out_err1:
iounmap(info->screen_base);
fb_dealloc_cmap(&info->cmap);
out_err0:
kfree(fb);
return -ENXIO;
......
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