diff options
| author | Kent Gibson <warthog618@gmail.com> | 2023-12-21 02:20:38 +0100 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2023-12-27 15:43:56 +0100 |
| commit | b718fbfea9df4f715ddd4c61a671226fb11bb232 (patch) | |
| tree | b937250f9844b442ffde35ac814b1fc4b76d2f11 /drivers/gpio | |
| parent | gpiolib: cdev: include overflow.h (diff) | |
| download | linux-b718fbfea9df4f715ddd4c61a671226fb11bb232.tar.xz linux-b718fbfea9df4f715ddd4c61a671226fb11bb232.zip | |
gpiolib: cdev: allocate linereq using kvzalloc()
The size of struct linereq may exceed a page, so allocate space for
it using kvzalloc() instead of kzalloc() to handle the case where
memory is heavily fragmented and kzalloc() cannot find a sufficient
contiguous region.
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib-cdev.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c index 942fe115b726..5424c878627e 100644 --- a/drivers/gpio/gpiolib-cdev.c +++ b/drivers/gpio/gpiolib-cdev.c @@ -1723,7 +1723,7 @@ static void linereq_free(struct linereq *lr) kfifo_free(&lr->events); kfree(lr->label); gpio_device_put(lr->gdev); - kfree(lr); + kvfree(lr); } static int linereq_release(struct inode *inode, struct file *file) @@ -1788,7 +1788,7 @@ static int linereq_create(struct gpio_device *gdev, void __user *ip) if (ret) return ret; - lr = kzalloc(struct_size(lr, lines, ulr.num_lines), GFP_KERNEL); + lr = kvzalloc(struct_size(lr, lines, ulr.num_lines), GFP_KERNEL); if (!lr) return -ENOMEM; lr->num_lines = ulr.num_lines; |