From: Amol Lad Date: Fri, 8 Dec 2006 10:40:13 +0000 (-0800) Subject: [PATCH] ioremap balanced with iounmap for drivers/video/cirrusfb X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d8b8c0a697d60c7d58a3dbda2d78553fd27727b3;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git [PATCH] ioremap balanced with iounmap for drivers/video/cirrusfb ioremap must be balanced by an iounmap and failing to do so can result in a memory leak. Signed-off-by: Amol Lad Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c index daf43f535a0b..2c4bc6205738 100644 --- a/drivers/video/cirrusfb.c +++ b/drivers/video/cirrusfb.c @@ -2442,7 +2442,10 @@ static int cirrusfb_pci_register (struct pci_dev *pdev, printk ("Cirrus Logic chipset on PCI bus\n"); pci_set_drvdata(pdev, info); - return cirrusfb_register(cinfo); + ret = cirrusfb_register(cinfo); + if (ret) + iounmap(cinfo->fbmem); + return ret; err_release_legacy: if (release_io_ports) @@ -2574,7 +2577,15 @@ static int cirrusfb_zorro_register(struct zorro_dev *z, printk (KERN_INFO "Cirrus Logic chipset on Zorro bus\n"); zorro_set_drvdata(z, info); - return cirrusfb_register(cinfo); + ret = cirrusfb_register(cinfo); + if (ret) { + if (btype == BT_PICASSO4) { + iounmap(cinfo->fbmem); + iounmap(cinfo->regbase - 0x600000); + } else if (board_addr > 0x01000000) + iounmap(cinfo->fbmem); + } + return ret; err_unmap_regbase: /* Parental advisory: explicit hack */