[PATCH 02/12] staging: dgnc: replaces generic struct from sizeof calls

Lidza Louina lidza.louina at gmail.com
Sat Aug 31 22:19:10 UTC 2013


This patch replaces all instances of "sizeof(struct"
with actual instances of the struct. For example
"sizeof(struct tty_struct" is replaced with
"sizeof(brd->SerialDriver.ttys".

This patch affects driver.c, mgmt.c and tty.c.

Signed-off-by: Lidza Louina <lidza.louina at gmail.com>
---
 drivers/staging/dgnc/dgnc_driver.c |  2 +-
 drivers/staging/dgnc/dgnc_mgmt.c   |  2 +-
 drivers/staging/dgnc/dgnc_tty.c    | 28 ++++++++++++++--------------
 3 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index 1e76f0c..9dee64c 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -499,7 +499,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 
 	/* get the board structure and prep it */
 	brd = dgnc_Board[dgnc_NumBoards] =
-	kzalloc(sizeof(struct board_t), GFP_KERNEL);
+	kzalloc(sizeof(brd), GFP_KERNEL);
 	if (!brd) {
 		APR(("memory allocation for board structure failed\n"));
 		return(-ENOMEM);
diff --git a/drivers/staging/dgnc/dgnc_mgmt.c b/drivers/staging/dgnc/dgnc_mgmt.c
index c4629d7..dcab2a8 100644
--- a/drivers/staging/dgnc/dgnc_mgmt.c
+++ b/drivers/staging/dgnc/dgnc_mgmt.c
@@ -209,7 +209,7 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		uint board = 0;
 		uint channel = 0;
 
-		if (copy_from_user(&ni, uarg, sizeof(struct ni_info))) {
+		if (copy_from_user(&ni, uarg, sizeof(ni))) {
 			return(-EFAULT);
 		}
 
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index a7bb6bc..e004ca8 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -208,8 +208,8 @@ int dgnc_tty_register(struct board_t *brd)
 
 	DPR_INIT(("tty_register start\n"));
 
-	memset(&brd->SerialDriver, 0, sizeof(struct tty_driver));
-	memset(&brd->PrintDriver, 0, sizeof(struct tty_driver));
+	memset(&brd->SerialDriver, 0, sizeof(brd->SerialDriver));
+	memset(&brd->PrintDriver, 0, sizeof(brd->PrintDriver));
 
 	brd->SerialDriver.magic = TTY_DRIVER_MAGIC;
 
@@ -230,7 +230,7 @@ int dgnc_tty_register(struct board_t *brd)
 	 * The kernel wants space to store pointers to
 	 * tty_struct's and termios's.
 	 */
-	brd->SerialDriver.ttys = kzalloc(brd->maxports * sizeof(struct tty_struct *), GFP_KERNEL);
+	brd->SerialDriver.ttys = kzalloc(brd->maxports * sizeof(brd->SerialDriver.ttys), GFP_KERNEL);
 	if (!brd->SerialDriver.ttys)
 		return(-ENOMEM);
 
@@ -240,12 +240,12 @@ int dgnc_tty_register(struct board_t *brd)
 	kref_init(&brd->SerialDriver.kref);
 #endif
 
-	brd->SerialDriver.termios = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
+	brd->SerialDriver.termios = kzalloc(brd->maxports * sizeof(brd->SerialDriver.termios), GFP_KERNEL);
 	if (!brd->SerialDriver.termios)
 		return(-ENOMEM);
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0)
-	brd->SerialDriver.termios_locked = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
+	brd->SerialDriver.termios_locked = kzalloc(brd->maxports * sizeof(brd->SerialDriver.termios_locked), GFP_KERNEL);
 	if (!brd->SerialDriver.termios_locked)
 		return(-ENOMEM);
 #endif
@@ -289,7 +289,7 @@ int dgnc_tty_register(struct board_t *brd)
 	 * tty_struct's and termios's.  Must be seperate from
 	 * the Serial Driver so we don't get confused
 	 */
-	brd->PrintDriver.ttys = kzalloc(brd->maxports * sizeof(struct tty_struct *), GFP_KERNEL);
+	brd->PrintDriver.ttys = kzalloc(brd->maxports * sizeof(brd->PrintDriver.ttys), GFP_KERNEL);
 	if (!brd->PrintDriver.ttys)
 		return(-ENOMEM);
 
@@ -299,12 +299,12 @@ int dgnc_tty_register(struct board_t *brd)
 	kref_init(&brd->PrintDriver.kref);
 #endif
 
-	brd->PrintDriver.termios = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
+	brd->PrintDriver.termios = kzalloc(brd->maxports * sizeof(brd->PrintDriver.termios), GFP_KERNEL);
 	if (!brd->PrintDriver.termios)
 		return(-ENOMEM);
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0)
-	brd->PrintDriver.termios_locked = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
+	brd->PrintDriver.termios_locked = kzalloc(brd->maxports * sizeof(brd->PrintDriver.termios_locked), GFP_KERNEL);
 	if (!brd->PrintDriver.termios_locked)
 		return(-ENOMEM);
 #endif
@@ -371,7 +371,7 @@ int dgnc_tty_init(struct board_t *brd)
 			 * Okay to malloc with GFP_KERNEL, we are not at
 			 * interrupt context, and there are no locks held.
 			 */
-			brd->channels[i] = kzalloc(sizeof(struct channel_t), GFP_KERNEL);
+			brd->channels[i] = kzalloc(sizeof(brd->channels[i]), GFP_KERNEL);
 			if (!brd->channels[i]) {
 				DPR_CORE(("%s:%d Unable to allocate memory for channel struct\n",
 				    __FILE__, __LINE__));
@@ -2721,7 +2721,7 @@ static int dgnc_tty_digiseta(struct tty_struct *tty, struct digi_t __user *new_i
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
 		return (-EFAULT);
 
-	if (copy_from_user(&new_digi, new_info, sizeof(struct digi_t))) {
+	if (copy_from_user(&new_digi, new_info, sizeof(new_digi))) {
 		DPR_IOCTL(("DIGI_SETA failed copy_from_user\n"));
 		return(-EFAULT);
 	}
@@ -2744,7 +2744,7 @@ static int dgnc_tty_digiseta(struct tty_struct *tty, struct digi_t __user *new_i
 	if ((ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) && !(new_digi.digi_flags & DIGI_DTR_TOGGLE))
 		ch->ch_mostat |= (UART_MCR_DTR);
 
-	memcpy(&ch->ch_digi, &new_digi, sizeof(struct digi_t));
+	memcpy(&ch->ch_digi, &new_digi, sizeof(ch->ch_digi));
 
 	if (ch->ch_digi.digi_maxcps < 1)
 		ch->ch_digi.digi_maxcps = 1;
@@ -3426,7 +3426,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 
-		if (copy_to_user(uarg, &buf, sizeof(struct digi_getcounter))) {
+		if (copy_to_user(uarg, &buf, sizeof(buf))) {
 			return (-EFAULT);
 		}
 		return(0);
@@ -3474,7 +3474,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		/*
 		 * Get data from user first.
 		 */
-		if (copy_from_user(&buf, uarg, sizeof(struct digi_getbuffer))) {
+		if (copy_from_user(&buf, uarg, sizeof(buf))) {
 			return (-EFAULT);
 		}
 
@@ -3520,7 +3520,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 
-		if (copy_to_user(uarg, &buf, sizeof(struct digi_getbuffer))) {
+		if (copy_to_user(uarg, &buf, sizeof(buf))) {
 			return (-EFAULT);
 		}
 		return(0);
-- 
1.8.1.2



More information about the devel mailing list