s390/zcrypt: don't leak memory if dev_set_name() fails

[ Upstream commit 6252f47b78031979ad919f971dc8468b893488bd ]

When dev_set_name() fails, zcdn_create() doesn't free the newly
allocated resources. Do it.

Fixes: 00fab2350e6b ("s390/zcrypt: multiple zcrypt device nodes support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230831110000.24279-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index f94b43ce9a65836690ffe3a57688e5d340d63a58..28e34d155334be24e1716d3628dd385a2021d293 100644 (file)
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -441,6 +441,7 @@ static int zcdn_create(const char *name)
                         ZCRYPT_NAME "_%d", (int)MINOR(devt));
        nodename[sizeof(nodename) - 1] = '\0';
        if (dev_set_name(&zcdndev->device, nodename)) {
+               kfree(zcdndev);
                rc = -EINVAL;
                goto unlockout;
        }