linux-kernel - [PATCH] EDAC/altera: Fix error checking

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Message-Id: <20230517191556.367689-1-asuk4.q@gmail.com>
Date:   Thu, 18 May 2023 03:15:56 +0800
From:   Yeqi Fu <asuk4.q@...il.com>
To:     dinguyen@...nel.org, bp@...en8.de, tony.luck@...el.com
Cc:     Yeqi Fu <asuk4.q@...il.com>, linux-edac@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] EDAC/altera: Fix error checking

The function edac_debugfs_create_dir returns ERR_PTR if an error
occurs, and the appropriate way to verify for errors is to use the
inline function IS_ERR. The patch will substitute the null-comparison
with IS_ERR.

Signed-off-by: Yeqi Fu <asuk4.q@...il.com>
---
 drivers/edac/altera_edac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c
index 8b31cd54bdb6..19693333408f 100644
--- a/drivers/edac/altera_edac.c
+++ b/drivers/edac/altera_edac.c
@@ -683,7 +683,7 @@ static void altr_create_edacdev_dbgfs(struct edac_device_ctl_info *edac_dci,
 		return;
 
 	drvdata->debugfs_dir = edac_debugfs_create_dir(drvdata->edac_dev_name);
-	if (!drvdata->debugfs_dir)
+	if (IS_ERR(drvdata->debugfs_dir))
 		return;
 
 	if (!edac_debugfs_create_file("altr_trigger", S_IWUSR,
-- 
2.37.2