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| author | Zhaolei <zhaolei@cn.fujitsu.com> | 2008-10-17 19:25:09 +0800 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-10-20 10:40:21 +0900 |
| commit | 25627c7fd71269e2658b6872eef65719ee80b9aa (patch) | |
| tree | 9f5b6f11354ef176348a42aa969c93b3f5794f8f | |
| parent | 9986b311efdc9727a5a48f03c3dac3d536fbaa74 (diff) | |
| download | op-kernel-dev-25627c7fd71269e2658b6872eef65719ee80b9aa.zip op-kernel-dev-25627c7fd71269e2658b6872eef65719ee80b9aa.tar.gz | |
Fix debugfs_create_file's error checking method for arch/sh/mm/
debugfs_create_file() returns NULL if an error occurs, returns -ENODEV
when debugfs is not enabled in the kernel.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| -rw-r--r-- | arch/sh/mm/cache-debugfs.c | 6 | ||||
| -rw-r--r-- | arch/sh/mm/pmb.c | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/sh/mm/cache-debugfs.c b/arch/sh/mm/cache-debugfs.c index 0e189cc..5ba067b 100644 --- a/arch/sh/mm/cache-debugfs.c +++ b/arch/sh/mm/cache-debugfs.c @@ -130,12 +130,18 @@ static int __init cache_debugfs_init(void) dcache_dentry = debugfs_create_file("dcache", S_IRUSR, sh_debugfs_root, (unsigned int *)CACHE_TYPE_DCACHE, &cache_debugfs_fops); + if (!dcache_dentry) + return -ENOMEM; if (IS_ERR(dcache_dentry)) return PTR_ERR(dcache_dentry); icache_dentry = debugfs_create_file("icache", S_IRUSR, sh_debugfs_root, (unsigned int *)CACHE_TYPE_ICACHE, &cache_debugfs_fops); + if (!icache_dentry) { + debugfs_remove(dcache_dentry); + return -ENOMEM; + } if (IS_ERR(icache_dentry)) { debugfs_remove(dcache_dentry); return PTR_ERR(icache_dentry); diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c index cef7276..8424167 100644 --- a/arch/sh/mm/pmb.c +++ b/arch/sh/mm/pmb.c @@ -394,6 +394,8 @@ static int __init pmb_debugfs_init(void) dentry = debugfs_create_file("pmb", S_IFREG | S_IRUGO, sh_debugfs_root, NULL, &pmb_debugfs_fops); + if (!dentry) + return -ENOMEM; if (IS_ERR(dentry)) return PTR_ERR(dentry); |
