[PATCH 3/3] ath10k: do not check if reset is NULL

[Masahiro Yamada]

Since reset_control_get() never returns NULL, we can use IS_ERR()
instead of IS_ERR_OR_NULL().  The return statements can be simpler
as well.

Signed-off-by: Masahiro Yamada <yamada.masah...@socionext.com>
---

 drivers/net/wireless/ath/ath10k/ahb.c | 25 ++++++++++---------------
 1 file changed, 10 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ahb.c 
b/drivers/net/wireless/ath/ath10k/ahb.c
index 6b355ee..b29dc4d 100644
--- a/drivers/net/wireless/ath/ath10k/ahb.c
+++ b/drivers/net/wireless/ath/ath10k/ahb.c
@@ -195,43 +195,38 @@ static int ath10k_ahb_rst_ctrl_init(struct ath10k *ar)
        dev = &ar_ahb->pdev->dev;
 
        ar_ahb->core_cold_rst = devm_reset_control_get(dev, "wifi_core_cold");
-       if (IS_ERR_OR_NULL(ar_ahb->core_cold_rst)) {
+       if (IS_ERR(ar_ahb->core_cold_rst)) {
                ath10k_err(ar, "failed to get core cold rst ctrl: %ld\n",
                           PTR_ERR(ar_ahb->core_cold_rst));
-               return ar_ahb->core_cold_rst ?
-                       PTR_ERR(ar_ahb->core_cold_rst) : -ENODEV;
+               return PTR_ERR(ar_ahb->core_cold_rst);
        }
 
        ar_ahb->radio_cold_rst = devm_reset_control_get(dev, "wifi_radio_cold");
-       if (IS_ERR_OR_NULL(ar_ahb->radio_cold_rst)) {
+       if (IS_ERR(ar_ahb->radio_cold_rst)) {
                ath10k_err(ar, "failed to get radio cold rst ctrl: %ld\n",
                           PTR_ERR(ar_ahb->radio_cold_rst));
-               return ar_ahb->radio_cold_rst ?
-                       PTR_ERR(ar_ahb->radio_cold_rst) : -ENODEV;
+               return PTR_ERR(ar_ahb->radio_cold_rst);
        }
 
        ar_ahb->radio_warm_rst = devm_reset_control_get(dev, "wifi_radio_warm");
-       if (IS_ERR_OR_NULL(ar_ahb->radio_warm_rst)) {
+       if (IS_ERR(ar_ahb->radio_warm_rst)) {
                ath10k_err(ar, "failed to get radio warm rst ctrl: %ld\n",
                           PTR_ERR(ar_ahb->radio_warm_rst));
-               return ar_ahb->radio_warm_rst ?
-                       PTR_ERR(ar_ahb->radio_warm_rst) : -ENODEV;
+               return PTR_ERR(ar_ahb->radio_warm_rst);
        }
 
        ar_ahb->radio_srif_rst = devm_reset_control_get(dev, "wifi_radio_srif");
-       if (IS_ERR_OR_NULL(ar_ahb->radio_srif_rst)) {
+       if (IS_ERR(ar_ahb->radio_srif_rst)) {
                ath10k_err(ar, "failed to get radio srif rst ctrl: %ld\n",
                           PTR_ERR(ar_ahb->radio_srif_rst));
-               return ar_ahb->radio_srif_rst ?
-                       PTR_ERR(ar_ahb->radio_srif_rst) : -ENODEV;
+               return PTR_ERR(ar_ahb->radio_srif_rst);
        }
 
        ar_ahb->cpu_init_rst = devm_reset_control_get(dev, "wifi_cpu_init");
-       if (IS_ERR_OR_NULL(ar_ahb->cpu_init_rst)) {
+       if (IS_ERR(ar_ahb->cpu_init_rst)) {
                ath10k_err(ar, "failed to get cpu init rst ctrl: %ld\n",
                           PTR_ERR(ar_ahb->cpu_init_rst));
-               return ar_ahb->cpu_init_rst ?
-                       PTR_ERR(ar_ahb->cpu_init_rst) : -ENODEV;
+               return PTR_ERR(ar_ahb->cpu_init_rst);
        }
 
        return 0;
-- 
1.9.1