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Message-ID: <20160923013032.GA32050@SEL-JYOUN-D1>
Date: Fri, 23 Sep 2016 10:30:32 +0900
From: Daeseok Youn <daeseok.youn@...il.com>
To: lidza.louina@...il.com
Cc: markh@...pro.net, gregkh@...uxfoundation.org,
driverdev-devel@...uxdriverproject.org, devel@...verdev.osuosl.org,
linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH 05/11 V2] staging: dgnc: move functions unrelated with
dgnc_found_board()
The functions related with tty device initialization are needed
to be moved from dgnc_found_board() to dgnc_init_one().
Signed-off-by: Daeseok Youn <daeseok.youn@...il.com>
---
V2: the subject line was cut off, I put it completely.
drivers/staging/dgnc/dgnc_driver.c | 81 ++++++++++++++++++++------------------
1 file changed, 43 insertions(+), 38 deletions(-)
diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index 0114e78..a95d13c 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -38,7 +38,7 @@ MODULE_SUPPORTED_DEVICE("dgnc");
*/
static int dgnc_start(void);
static int dgnc_finalize_board_init(struct dgnc_board *brd);
-static int dgnc_found_board(struct pci_dev *pdev, int id);
+static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id);
static void dgnc_cleanup_board(struct dgnc_board *brd);
static void dgnc_poll_handler(ulong dummy);
static int dgnc_init_one(struct pci_dev *pdev,
@@ -274,6 +274,7 @@ failed_class:
static int dgnc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
int rc;
+ struct dgnc_board *brd;
/* wake up and enable device */
rc = pci_enable_device(pdev);
@@ -281,9 +282,43 @@ static int dgnc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (rc)
return -EIO;
- rc = dgnc_found_board(pdev, ent->driver_data);
- if (rc == 0)
- dgnc_num_boards++;
+ brd = dgnc_found_board(pdev, ent->driver_data);
+ if (IS_ERR(brd))
+ return PTR_ERR(brd);
+
+ /*
+ * Do tty device initialization.
+ */
+
+ rc = dgnc_tty_register(brd);
+ if (rc < 0) {
+ pr_err(DRVSTR ": Can't register tty devices (%d)\n", rc);
+ goto failed;
+ }
+
+ rc = dgnc_finalize_board_init(brd);
+ if (rc < 0) {
+ pr_err(DRVSTR ": Can't finalize board init (%d)\n", rc);
+ goto failed;
+ }
+
+ rc = dgnc_tty_init(brd);
+ if (rc < 0) {
+ pr_err(DRVSTR ": Can't init tty devices (%d)\n", rc);
+ goto failed;
+ }
+
+ brd->state = BOARD_READY;
+ brd->dpastatus = BD_RUNNING;
+
+ dgnc_create_ports_sysfiles(brd);
+
+ dgnc_board[dgnc_num_boards++] = brd;
+
+ return 0;
+
+failed:
+ kfree(brd);
return rc;
}
@@ -345,7 +380,7 @@ static void dgnc_cleanup_board(struct dgnc_board *brd)
*
* A board has been found, init it.
*/
-static int dgnc_found_board(struct pci_dev *pdev, int id)
+static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id)
{
struct dgnc_board *brd;
unsigned int pci_irq;
@@ -355,7 +390,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
/* get the board structure and prep it */
brd = kzalloc(sizeof(*brd), GFP_KERNEL);
if (!brd)
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
/* store the info for the board we've found */
brd->magic = DGNC_BOARD_MAGIC;
@@ -505,33 +540,6 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
goto failed;
}
- /*
- * Do tty device initialization.
- */
-
- rc = dgnc_tty_register(brd);
- if (rc < 0) {
- pr_err(DRVSTR ": Can't register tty devices (%d)\n", rc);
- goto failed;
- }
-
- rc = dgnc_finalize_board_init(brd);
- if (rc < 0) {
- pr_err(DRVSTR ": Can't finalize board init (%d)\n", rc);
- goto failed;
- }
-
- rc = dgnc_tty_init(brd);
- if (rc < 0) {
- pr_err(DRVSTR ": Can't init tty devices (%d)\n", rc);
- goto failed;
- }
-
- brd->state = BOARD_READY;
- brd->dpastatus = BD_RUNNING;
-
- dgnc_create_ports_sysfiles(brd);
-
/* init our poll helper tasklet */
tasklet_init(&brd->helper_tasklet,
brd->bd_ops->tasklet,
@@ -539,15 +547,12 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
wake_up_interruptible(&brd->state_wait);
- dgnc_board[dgnc_num_boards] = brd;
-
- return 0;
+ return brd;
failed:
- dgnc_tty_uninit(brd);
kfree(brd);
- return rc;
+ return ERR_PTR(rc);
}
static int dgnc_finalize_board_init(struct dgnc_board *brd)
--
1.9.1
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