[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>
diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c
index daf43f5..2c4bc62 100644
--- a/drivers/video/cirrusfb.c
+++ b/drivers/video/cirrusfb.c
@@ -2442,7 +2442,10 @@
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 @@
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 */