From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Wed, 8 Jun 2022 09:01:52 +0000 (+0000)
Subject: mmc: debugfs: Fix file release memory leak
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ba1de43768aa27865169af00ee0c2a4a165690b6;p=linux.git

mmc: debugfs: Fix file release memory leak

When using single_open() for opening, single_release() should be
used instead of seq_release(), otherwise there is a memory leak.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20220608090152.179395-1-weiyongjun1@huawei.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---

diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c
index 75e98ec88fb9b..fe6808771bc72 100644
--- a/drivers/mmc/core/debugfs.c
+++ b/drivers/mmc/core/debugfs.c
@@ -295,6 +295,7 @@ static const struct file_operations mmc_err_stats_fops = {
 	.open	= mmc_err_stats_open,
 	.read	= seq_read,
 	.write	= mmc_err_stats_write,
+	.release = single_release,
 };
 
 void mmc_add_host_debugfs(struct mmc_host *host)