From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Kent Gibson <warthog618@gmail.com>,
Linus Walleij <linus.walleij@linaro.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Andy Shevchenko <andy.shevchenko@gmail.com>
Subject: [PATCH v4 04/13] gpiolib: use gpiochip_get_desc() in linehandle_create()
Date: Tue, 24 Dec 2019 13:07:00 +0100 [thread overview]
Message-ID: <20191224120709.18247-5-brgl@bgdev.pl> (raw)
In-Reply-To: <20191224120709.18247-1-brgl@bgdev.pl>
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Unduplicate the ngpio check by simply calling gpiochip_get_desc() and
checking its return value.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
---
drivers/gpio/gpiolib.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 68adbd2179a0..fcec8b090677 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -678,14 +678,13 @@ static int linehandle_create(struct gpio_device *gdev, void __user *ip)
/* Request each GPIO */
for (i = 0; i < handlereq.lines; i++) {
u32 offset = handlereq.lineoffsets[i];
- struct gpio_desc *desc;
+ struct gpio_desc *desc = gpiochip_get_desc(gdev->chip, offset);
- if (offset >= gdev->ngpio) {
- ret = -EINVAL;
+ if (IS_ERR(desc)) {
+ ret = PTR_ERR(desc);
goto out_free_descs;
}
- desc = &gdev->descs[offset];
ret = gpiod_request(desc, lh->label);
if (ret)
goto out_free_descs;
--
2.23.0
next prev parent reply other threads:[~2019-12-24 12:08 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-24 12:06 [PATCH v4 00/13] gpiolib: add an ioctl() for monitoring line status changes Bartosz Golaszewski
2019-12-24 12:06 ` [PATCH v4 01/13] gpiolib: use 'unsigned int' instead of 'unsigned' in gpio_set_config() Bartosz Golaszewski
2020-01-07 10:02 ` Linus Walleij
2019-12-24 12:06 ` [PATCH v4 02/13] gpiolib: have a single place of calling set_config() Bartosz Golaszewski
2020-01-07 10:02 ` Linus Walleij
2020-01-20 8:44 ` Geert Uytterhoeven
2020-01-20 9:54 ` Andy Shevchenko
2020-01-23 10:16 ` Bartosz Golaszewski
2020-02-01 19:52 ` Guenter Roeck
2020-02-03 11:04 ` Bartosz Golaszewski
2019-12-24 12:06 ` [PATCH v4 03/13] gpiolib: convert the type of hwnum to unsigned int in gpiochip_get_desc() Bartosz Golaszewski
2020-01-07 10:03 ` Linus Walleij
2019-12-24 12:07 ` Bartosz Golaszewski [this message]
2020-01-07 10:04 ` [PATCH v4 04/13] gpiolib: use gpiochip_get_desc() in linehandle_create() Linus Walleij
2019-12-24 12:07 ` [PATCH v4 05/13] gpiolib: use gpiochip_get_desc() in lineevent_create() Bartosz Golaszewski
2020-01-07 10:04 ` Linus Walleij
2019-12-24 12:07 ` [PATCH v4 06/13] gpiolib: use gpiochip_get_desc() in gpio_ioctl() Bartosz Golaszewski
2020-01-07 10:04 ` Linus Walleij
2019-12-24 12:07 ` [PATCH v4 07/13] kfifo: provide noirqsave variants of spinlocked in and out helpers Bartosz Golaszewski
2019-12-24 12:07 ` [PATCH v4 08/13] kfifo: provide kfifo_is_empty_spinlocked() Bartosz Golaszewski
2019-12-24 12:07 ` [PATCH v4 09/13] gpiolib: rework the locking mechanism for lineevent kfifo Bartosz Golaszewski
2020-01-08 11:06 ` Andy Shevchenko
2019-12-24 12:07 ` [PATCH v4 10/13] gpiolib: emit a debug message when adding events to a full kfifo Bartosz Golaszewski
2019-12-24 12:07 ` [PATCH v4 11/13] gpiolib: provide a dedicated function for setting lineinfo Bartosz Golaszewski
2020-01-08 12:41 ` Andy Shevchenko
2019-12-24 12:07 ` [PATCH v4 12/13] gpiolib: add new ioctl() for monitoring changes in line info Bartosz Golaszewski
2020-01-08 12:46 ` Andy Shevchenko
2020-01-08 16:55 ` Bartosz Golaszewski
2020-06-09 0:23 ` Kent Gibson
2020-06-09 7:58 ` Bartosz Golaszewski
2019-12-24 12:07 ` [PATCH v4 13/13] tools: gpio: implement gpio-watch Bartosz Golaszewski
2020-01-08 12:47 ` Andy Shevchenko
2020-01-07 10:07 ` [PATCH v4 00/13] gpiolib: add an ioctl() for monitoring line status changes Linus Walleij
2020-01-07 10:38 ` Bartosz Golaszewski
2020-01-07 12:50 ` Linus Walleij
2020-01-07 13:15 ` Stefani Seibold
2020-01-07 14:44 ` Andy Shevchenko
2020-01-07 14:45 ` Andy Shevchenko
2020-01-07 15:19 ` Bartosz Golaszewski
2020-01-07 15:58 ` Andy Shevchenko
2020-01-07 16:51 ` Bartosz Golaszewski
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