diff mbox series

[6/8] staging: wfx: gpiod_get_value() can return an error

Message ID 20201009171307.864608-7-Jerome.Pouiller@silabs.com (mailing list archive)
State Not Applicable
Delegated to: Johannes Berg
Headers show
Series staging: wfx: fix issues reported by Smatch | expand

Commit Message

Jérôme Pouiller Oct. 9, 2020, 5:13 p.m. UTC 
From: Jérôme Pouiller <jerome.pouiller@silabs.com>

Smatch complains:

    hif_rx.c:98 hif_wakeup_indication() warn: 'gpiod_get_value(wdev->pdata.gpio_wakeup)' returns positive and negative
    bh.c:24 device_wakeup() warn: 'gpiod_get_value_cansleep(wdev->pdata.gpio_wakeup)' returns positive and negative

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
---
 drivers/staging/wfx/bh.c     | 2 +-
 drivers/staging/wfx/hif_rx.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/staging/wfx/bh.c b/drivers/staging/wfx/bh.c
index 586b769c0446..2ffa587aefaa 100644
--- a/drivers/staging/wfx/bh.c
+++ b/drivers/staging/wfx/bh.c
@@ -21,7 +21,7 @@  static void device_wakeup(struct wfx_dev *wdev)
 
 	if (!wdev->pdata.gpio_wakeup)
 		return;
-	if (gpiod_get_value_cansleep(wdev->pdata.gpio_wakeup))
+	if (gpiod_get_value_cansleep(wdev->pdata.gpio_wakeup) >= 0)
 		return;
 
 	if (wfx_api_older_than(wdev, 1, 4)) {
diff --git a/drivers/staging/wfx/hif_rx.c b/drivers/staging/wfx/hif_rx.c
index 2d4265257112..f99921e76059 100644
--- a/drivers/staging/wfx/hif_rx.c
+++ b/drivers/staging/wfx/hif_rx.c
@@ -94,8 +94,8 @@  static int hif_startup_indication(struct wfx_dev *wdev,
 static int hif_wakeup_indication(struct wfx_dev *wdev,
 				 const struct hif_msg *hif, const void *buf)
 {
-	if (!wdev->pdata.gpio_wakeup
-	    || !gpiod_get_value(wdev->pdata.gpio_wakeup)) {
+	if (!wdev->pdata.gpio_wakeup ||
+	    gpiod_get_value(wdev->pdata.gpio_wakeup) == 0) {
 		dev_warn(wdev->dev, "unexpected wake-up indication\n");
 		return -EIO;
 	}