[PATCH] ioremap balanced with iounmap for drivers/video/virgefb
ioremap must be balanced by an iounmap and failing to do so can result in a memory leak. Signed-off-by: Amol Lad <amol@verismonetworks.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -1799,7 +1799,7 @@ int __init virgefb_init(void)
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#warning release resources
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printk(KERN_ERR "virgefb.c: register_framebuffer failed\n");
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DPRINTK("EXIT\n");
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return -EINVAL;
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goto out_unmap;
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}
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printk(KERN_INFO "fb%d: %s frame buffer device, using %ldK of video memory\n",
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@ -1809,6 +1809,21 @@ int __init virgefb_init(void)
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DPRINTK("EXIT\n");
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return 0;
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out_unmap:
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if (board_addr >= 0x01000000) {
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if (v_ram)
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iounmap((void*)v_ram);
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if (vgaio_regs)
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iounmap(vgaio_regs);
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if (mmio_regs)
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iounmap(mmio_regs);
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if (vcode_switch_base)
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iounmap((void*)vcode_switch_base);
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v_ram = vcode_switch_base = 0;
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vgaio_regs = mmio_regs = NULL;
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}
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return -EINVAL;
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}
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