2023-05-13 15:30:43

by Immad Mir

[permalink] [raw]
Subject: [PATCH] powerpc: fix debugfs_create_dir error checking

From: Immad Mir <[email protected]>

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 <[email protected]>
Signed-off-by: Immad Mir <[email protected]>
---
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