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Message-ID: <CY5PR12MB64553EE96EBB3927311DB598C6459@CY5PR12MB6455.namprd12.prod.outlook.com>
Date: Sun, 28 May 2023 13:16:44 +0530
From: mirimmad@...look.com
To: gregkh@...uxfoundation.org
Cc: Immad Mir <mirimmad17@...il.com>,
Ivan Orlov <ivan.orlov0322@...il.com>,
Michael Ellerman <mpe@...erman.id.au>,
Nicholas Piggin <npiggin@...il.com>,
Christophe Leroy <christophe.leroy@...roup.eu>,
linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH] powerpc: fix debugfs_create_dir error checking
From: Immad Mir <mirimmad17@...il.com>
The debugfs_create_dir returns ERR_PTR incase of an error and the
correct way of checking it by using the IS_ERR inline function, and
not the simple null comparision. This patch fixes this.
Suggested-By: Ivan Orlov <ivan.orlov0322@...il.com>
Signed-off-by: Immad Mir <mirimmad17@...il.com>
---
arch/powerpc/platforms/powernv/opal-xscom.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/opal-xscom.c b/arch/powerpc/platforms/powernv/opal-xscom.c
index 6b4eed2ef..262cd6fac 100644
--- a/arch/powerpc/platforms/powernv/opal-xscom.c
+++ b/arch/powerpc/platforms/powernv/opal-xscom.c
@@ -168,7 +168,7 @@ static int scom_debug_init_one(struct dentry *root, struct device_node *dn,
ent->path.size = strlen((char *)ent->path.data);
dir = debugfs_create_dir(ent->name, root);
- if (!dir) {
+ if (IS_ERR(dir)) {
kfree(ent->path.data);
kfree(ent);
return -1;
@@ -190,7 +190,7 @@ static int scom_debug_init(void)
return 0;
root = debugfs_create_dir("scom", arch_debugfs_dir);
- if (!root)
+ if (IS_ERR(root))
return -1;
rc = 0;
--
2.40.0
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