From a141a04330bd6eadf7081a0860dc786be7d09c46 Mon Sep 17 00:00:00 2001
From: Amol Lad <amol@verismonetworks.com>
Date: Sat, 30 Sep 2006 23:29:24 -0700
Subject: [PATCH] [PATCH] ioremap balanced with iounmap for
drivers/serial/mpsc.c
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: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
drivers/serial/mpsc.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/serial/mpsc.c b/drivers/serial/mpsc.c
index 63d2a66e563bac..704243c9f78a44 100644
--- a/drivers/serial/mpsc.c
+++ b/drivers/serial/mpsc.c
@@ -1893,6 +1893,10 @@ mpsc_drv_map_regs(struct mpsc_port_info *pi, struct platform_device *pd)
}
else {
mpsc_resource_err("SDMA base");
+ if (pi->mpsc_base) {
+ iounmap(pi->mpsc_base);
+ pi->mpsc_base = NULL;
+ }
return -ENOMEM;
}
@@ -1905,6 +1909,14 @@ mpsc_drv_map_regs(struct mpsc_port_info *pi, struct platform_device *pd)
}
else {
mpsc_resource_err("BRG base");
+ if (pi->mpsc_base) {
+ iounmap(pi->mpsc_base);
+ pi->mpsc_base = NULL;
+ }
+ if (pi->sdma_base) {
+ iounmap(pi->sdma_base);
+ pi->sdma_base = NULL;
+ }
return -ENOMEM;
}
--
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