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misc: ocxl: use DEFINE_MUTEX() for mutex lock

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mutex lock can be initialized automatically with DEFINE_MUTEX()
rather than explicitly calling mutex_init().

Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Link: https://lore.kernel.org/r/20201224132446.31286-1-zhengyongjun3@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zheng Yongjun 2020-12-24 21:24:46 +08:00 committed by Greg Kroah-Hartman
parent 5c8fe583cc
commit 22a9e57fcc
1 changed files with 1 additions and 2 deletions
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3
drivers/misc/ocxl/file.c
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@ -15,7 +15,7 @@
static dev_t ocxl_dev; static dev_t ocxl_dev;
static struct class *ocxl_class; static struct class *ocxl_class;
static struct mutex minors_idr_lock; static DEFINE_MUTEX(minors_idr_lock);
static struct idr minors_idr; static struct idr minors_idr;
static struct ocxl_file_info *find_and_get_file_info(dev_t devno) static struct ocxl_file_info *find_and_get_file_info(dev_t devno)
@ -588,7 +588,6 @@ int ocxl_file_init(void)
{ {
int rc; int rc;
mutex_init(&minors_idr_lock);
idr_init(&minors_idr); idr_init(&minors_idr);
rc = alloc_chrdev_region(&ocxl_dev, 0, OCXL_NUM_MINORS, "ocxl"); rc = alloc_chrdev_region(&ocxl_dev, 0, OCXL_NUM_MINORS, "ocxl");