Re: [Linux-fbdev-devel] [PATCH 8/15] stifb: check fb_alloc_cmap return value and handle failure properly
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From: Krzysztof Helt <hidden>
Date: 2009-02-09 17:01:59
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On Sat, 7 Feb 2009 12:15:06 -0500 Andres Salomon [off-list ref] wrote:
Signed-off-by: Andres Salomon <redacted> ---
Acked-by: Krzysztof Helt <redacted> I feel something is not right with the driver if memory region (info->screen_base) is io mapped first then reserved with request_mem_region(). Regards, Krzysztof
quoted hunk ↗ jump to hunk
drivers/video/stifb.c | 18 ++++++++++-------- 1 files changed, 10 insertions(+), 8 deletions(-)diff --git a/drivers/video/stifb.c b/drivers/video/stifb.c index 1664814..eabaad7 100644 --- a/drivers/video/stifb.c +++ b/drivers/video/stifb.c@@ -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;-- 1.5.6.5 ------------------------------------------------------------------------------ Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing skills and code to build responsive, highly engaging applications that combine the power of local resources and data with the reach of the web. Download the Adobe AIR SDK and Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com _______________________________________________ Linux-fbdev-devel mailing list Linux-fbdev-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-fbdev-devel