From: Roel Kluin <[roel.kluin@gmail.com]>
Date: Tue, 11 Aug 2009 21:52:11 +0000 (-0700)
Subject: arch/ia64/kernel/iosapic: missing test after ioremap()
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=e7369e01eb85550ed60dd1b0e120b69dfb03dc23;p=openwrt%2Fstaging%2Fblogic.git

arch/ia64/kernel/iosapic: missing test after ioremap()

Missing test after ioremap()

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
---

diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index c48b03f2b61d..dab4d393908c 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -1072,6 +1072,10 @@ iosapic_init (unsigned long phys_addr, unsigned int gsi_base)
 	}
 
 	addr = ioremap(phys_addr, 0);
+	if (addr == NULL) {
+		spin_unlock_irqrestore(&iosapic_lock, flags);
+		return -ENOMEM;
+	}
 	ver = iosapic_version(addr);
 	if ((err = iosapic_check_gsi_range(gsi_base, ver))) {
 		iounmap(addr);