From: Roel Kluin <roel.kluin@gmail.com>
To: benh@kernel.crashing.org, linuxppc-dev@ozlabs.org,
Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH] powerpc: missing tests after ioremap()?
Date: Thu, 30 Jul 2009 18:02:18 +0200 [thread overview]
Message-ID: <4A71C40A.2060606@gmail.com> (raw)
Missing tests after ioremap()
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
Shouldn't we test whether ioremaps fail?
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index e6c0040..3a4ebd3 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -2589,9 +2589,16 @@ static void __init probe_uninorth(void)
if (address == 0)
return;
uninorth_base = ioremap(address, 0x40000);
+ if (uninorth_base == NULL)
+ return;
uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
- if (uninorth_maj == 3 || uninorth_maj == 4)
+ if (uninorth_maj == 3 || uninorth_maj == 4) {
u3_ht_base = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
+ if (u3_ht_base == NULL) {
+ iounmap(uninorth_base);
+ return;
+ }
+ }
printk(KERN_INFO "Found %s memory controller & host bridge"
" @ 0x%08x revision: 0x%02x\n", uninorth_maj == 3 ? "U3" :
reply other threads:[~2009-07-30 15:59 UTC|newest]
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