From: Wei Yongjun <weiyongjun1@xxxxxxxxxx> commit c552ffb5c93d9d65aaf34f5f001c4e7e8484ced1 upstream. When using single_open() for opening, single_release() should be used instead of seq_release(), otherwise there is a memory leak. Fixes: 09ae5d37e093 ("crypto: zip - Add Compression/Decompression statistics") Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/crypto/cavium/zip/zip_main.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/crypto/cavium/zip/zip_main.c +++ b/drivers/crypto/cavium/zip/zip_main.c @@ -595,6 +595,7 @@ static const struct file_operations zip_ .owner = THIS_MODULE, .open = zip_stats_open, .read = seq_read, + .release = single_release, }; static int zip_clear_open(struct inode *inode, struct file *file) @@ -606,6 +607,7 @@ static const struct file_operations zip_ .owner = THIS_MODULE, .open = zip_clear_open, .read = seq_read, + .release = single_release, }; static int zip_regs_open(struct inode *inode, struct file *file) @@ -617,6 +619,7 @@ static const struct file_operations zip_ .owner = THIS_MODULE, .open = zip_regs_open, .read = seq_read, + .release = single_release, }; /* Root directory for thunderx_zip debugfs entry */