media: exynos4-is: no need to check return value of debugfs_create functions

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/platform/exynos4-is/fimc-is.c b/drivers/media/platform/exynos4-is/fimc-is.c
index a474014f0a0fa5dc9e212d2e36a69ac17638bd28..019bb47df915e79aead597a71aa2682e63057a85 100644 (file)
--- a/drivers/media/platform/exynos4-is/fimc-is.c
+++ b/drivers/media/platform/exynos4-is/fimc-is.c
@@ -756,18 +756,12 @@ static void fimc_is_debugfs_remove(struct fimc_is *is)
        is->debugfs_entry = NULL;
 }
 
-static int fimc_is_debugfs_create(struct fimc_is *is)
+static void fimc_is_debugfs_create(struct fimc_is *is)
 {
-       struct dentry *dentry;
-
        is->debugfs_entry = debugfs_create_dir("fimc_is", NULL);
 
-       dentry = debugfs_create_file("fw_log", S_IRUGO, is->debugfs_entry,
-                                    is, &fimc_is_fops);
-       if (!dentry)
-               fimc_is_debugfs_remove(is);
-
-       return is->debugfs_entry == NULL ? -EIO : 0;
+       debugfs_create_file("fw_log", S_IRUGO, is->debugfs_entry, is,
+                           &fimc_is_fops);
 }
 
 static int fimc_is_runtime_resume(struct device *dev);
@@ -853,9 +847,7 @@ static int fimc_is_probe(struct platform_device *pdev)
        if (ret < 0)
                goto err_pm;
 
-       ret = fimc_is_debugfs_create(is);
-       if (ret < 0)
-               goto err_sd;
+       fimc_is_debugfs_create(is);
 
        ret = fimc_is_request_firmware(is, FIMC_IS_FW_FILENAME);
        if (ret < 0)
@@ -868,7 +860,6 @@ static int fimc_is_probe(struct platform_device *pdev)
 
 err_dfs:
        fimc_is_debugfs_remove(is);
-err_sd:
        fimc_is_unregister_subdevs(is);
 err_pm:
        pm_runtime_put_noidle(dev);