[PATCH] crypto: qat - Fix return value check in adf_chr_drv_create()

[weiyj_lk]

From: Wei Yongjun <yongjun_...@trendmicro.com.cn>

In case of error, the function device_create() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_...@trendmicro.com.cn>
---
 drivers/crypto/qat/qat_common/adf_ctl_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/qat/qat_common/adf_ctl_drv.c 
b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
index d97069b..6f7816e 100644
--- a/drivers/crypto/qat/qat_common/adf_ctl_drv.c
+++ b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
@@ -111,7 +111,7 @@ static int adf_chr_drv_create(void)
        drv_device = device_create(adt_ctl_drv.drv_class, NULL,
                                   MKDEV(adt_ctl_drv.major, 0),
                                   NULL, DEVICE_NAME);
-       if (!drv_device) {
+       if (IS_ERR(drv_device)) {
                pr_err("QAT: failed to create device\n");
                goto err_cdev_del;
        }

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