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Message-ID: <5bf820c6-8b07-cf0c-438b-a411815c202c@intel.com>
Date: Wed, 23 Nov 2022 12:54:07 +0200
From: Adrian Hunter <adrian.hunter@...el.com>
To: Ye Bin <yebin@...weicloud.com>, ulf.hansson@...aro.org,
wsa+renesas@...g-engineering.com, kvalo@...nel.org,
linux-mmc@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, yebin10@...wei.com
Subject: Re: [PATCH] mmc: mmc_test: fix missing assignment of 'file' when
register debugfs file
On 23/11/22 11:55, Ye Bin wrote:
> From: Ye Bin <yebin10@...wei.com>
>
> Now, 'file' is always NULL. obviously, 'file' is used to store return value of
> 'debugfs_create_file()'.
'file' is used to remove debugfs files when the mmc_test module is removed.
>
> Fixes: a04c50aaa916 ("mmc: core: no need to check return value of debugfs_create functions")
> Signed-off-by: Ye Bin <yebin10@...wei.com>
Acked-by: Adrian Hunter <adrian.hunter@...el.com>
> ---
> drivers/mmc/core/mmc_test.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/core/mmc_test.c b/drivers/mmc/core/mmc_test.c
> index 6cd6f8a94a71..156d34b2ed4d 100644
> --- a/drivers/mmc/core/mmc_test.c
> +++ b/drivers/mmc/core/mmc_test.c
> @@ -3174,7 +3174,8 @@ static int __mmc_test_register_dbgfs_file(struct mmc_card *card,
> struct mmc_test_dbgfs_file *df;
>
> if (card->debugfs_root)
> - debugfs_create_file(name, mode, card->debugfs_root, card, fops);
> + file = debugfs_create_file(name, mode, card->debugfs_root,
> + card, fops);
>
> df = kmalloc(sizeof(*df), GFP_KERNEL);
> if (!df) {
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