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>
git-mirror · Aug 11, 2009 · e7369e0 · e7369e0
1 parent 5359dff
commit e7369e0
Showing 1 changed file with 4 additions and 0 deletions.
diff --git 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);