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authorAmol Lad <amol@verismonetworks.com>2006-12-08 02:40:13 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-08 08:29:05 -0800
commitd8b8c0a697d60c7d58a3dbda2d78553fd27727b3 (patch)
tree3a9261c962c65bf2cea064daf5e2bf06df659e9a /drivers/video/cirrusfb.c
parentd02abed8aa6bd37abcd802de64a63ed2af5e18ff (diff)
[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 <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>
Diffstat (limited to 'drivers/video/cirrusfb.c')
-rw-r--r--drivers/video/cirrusfb.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c
index daf43f535a0..2c4bc620573 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 */