From: Chuhong Yuan <hslester96@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
Chuhong Yuan <hslester96@gmail.com>
Subject: [PATCH] USB: bcma: Add a check for devm_gpiod_get
Date: Wed, 16 Oct 2019 16:35:32 +0800 [thread overview]
Message-ID: <20191016083531.5734-1-hslester96@gmail.com> (raw)
bcma_hcd_probe misses a check for devm_gpiod_get and may miss
the error.
Add a check for it and return the error if a failure occurs.
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
---
drivers/usb/host/bcma-hcd.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c
index 2400a826397a..652fa29beb27 100644
--- a/drivers/usb/host/bcma-hcd.c
+++ b/drivers/usb/host/bcma-hcd.c
@@ -406,9 +406,12 @@ static int bcma_hcd_probe(struct bcma_device *core)
return -ENOMEM;
usb_dev->core = core;
- if (core->dev.of_node)
+ if (core->dev.of_node) {
usb_dev->gpio_desc = devm_gpiod_get(&core->dev, "vcc",
GPIOD_OUT_HIGH);
+ if (IS_ERR(usb_dev->gpio_desc))
+ return PTR_ERR(usb_dev->gpio_desc);
+ }
switch (core->id.id) {
case BCMA_CORE_USB20_HOST:
--
2.20.1
reply other threads:[~2019-10-16 8:36 UTC|newest]
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