Messages in this thread Patch in this message | | | Subject | Re: [PATCH 4/5] ioremap balanced with iounmap for drivers/char/rio/rio_linux.c | From | Amol Lad <> | Date | Fri, 06 Oct 2006 16:51:06 +0530 |
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> > + > > + if (hp->Caddr) > > + iounmap(hp->Caddr); > > } > > I don't think this is sufficient because it may be unmapped earlier on > error but hp->Caddr is not then cleared .
Is this fine ?
Signed-off-by: Amol Lad <amol@verismonetworks.com> --- rio_linux.c | 9 ++++++++- 1 files changed, 8 insertions(+), 1 deletion(-) --- diff -uprN -X linux-2.6.19-rc1-orig/Documentation/dontdiff linux-2.6.19-rc1-orig/drivers/char/rio/rio_linux.c linux-2.6.19-rc1/drivers/char/rio/rio_linux.c --- linux-2.6.19-rc1-orig/drivers/char/rio/rio_linux.c 2006-10-05 14:00:43.000000000 +0530 +++ linux-2.6.19-rc1/drivers/char/rio/rio_linux.c 2006-10-06 16:42:19.000000000 +0530 @@ -1022,6 +1022,7 @@ static int __init rio_init(void) found++; } else { iounmap(p->RIOHosts[p->RIONumHosts].Caddr); + p->RIOHosts[p->RIONumHosts].Caddr = NULL; } } @@ -1071,6 +1072,7 @@ static int __init rio_init(void) found++; } else { iounmap(p->RIOHosts[p->RIONumHosts].Caddr); + p->RIOHosts[p->RIONumHosts].Caddr = NULL; } #else printk(KERN_ERR "Found an older RIO PCI card, but the driver is not " "compiled to support it.\n"); @@ -1110,8 +1112,10 @@ static int __init rio_init(void) } } - if (!okboard) + if (!okboard) { iounmap(hp->Caddr); + hp->Caddr = NULL; + } } } @@ -1181,6 +1185,9 @@ static void __exit rio_exit(void) } /* It is safe/allowed to del_timer a non-active timer */ del_timer(&hp->timer); + + if (hp->Caddr) + iounmap(hp->Caddr); } if (misc_deregister(&rio_fw_device) < 0) {
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