clocksource: cyclone: Add missing iounmap
Author: Julia Lawall <Julia.Lawall@lip6.fr>
Add missing iounmap in error handling code, in a case where the function
already preforms iounmap on some other execution path.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
//
@@
expression e;
statement S,S1;
int ret;
@@
e = \(ioremap\|ioremap_nocache\)(...)
... when != iounmap(e)
if (<+...e...+>) S
... when any
when != iounmap(e)
*if (...)
{ ... when != iounmap(e)
return ...; }
... when any
iounmap(e);
//
Signed-off-by: Julia Lawall
[fixed up subject -jstultz]
Signed-off-by: John Stultz
---
drivers/clocksource/cyclone.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clocksource/cyclone.c b/drivers/clocksource/cyclone.c
index 72f811f..9e0998f 100644
--- a/drivers/clocksource/cyclone.c
+++ b/drivers/clocksource/cyclone.c
@@ -55,11 +55,11 @@ static int __init init_cyclone_clocksource(void)
}
/* even on 64bit systems, this is only 32bits: */
base = readl(reg);
+ iounmap(reg);
if (!base) {
printk(KERN_ERR "Summit chipset: Could not find valid CBAR value.\n");
return -ENODEV;
}
- iounmap(reg);
/* setup PMCC: */
offset = base + CYCLONE_PMCC_OFFSET; |
---
drivers/clocksource/cyclone.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clocksource/cyclone.c b/drivers/clocksource/cyclone.c
index 72f811f..9e0998f 100644
--- a/drivers/clocksource/cyclone.c
+++ b/drivers/clocksource/cyclone.c
@@ -55,11 +55,11 @@ static int __init init_cyclone_clocksource(void)
}
/* even on 64bit systems, this is only 32bits: */
base = readl(reg);
+ iounmap(reg);
if (!base) {
printk(KERN_ERR "Summit chipset: Could not find valid CBAR value.\n");
return -ENODEV;
}
- iounmap(reg);
/* setup PMCC: */
offset = base + CYCLONE_PMCC_OFFSET;