redonkable/remarkable-linux
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staging: dgnc: delete all references to 'flipbuf'

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This patch deletes all references to 'flipbuf'.Memory is allocated and
freed but never used anywhere in the driver.Also deleted an ununsed
Macro defined in the header file.

Signed-off-by: Gujulan Elango Hari Prasath <hgujulan@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gujulan Elango, Hari Prasath (H.) 2015-05-29 07:17:37 +00:00 committed by Greg Kroah-Hartman
parent 8ad524ffb2
commit 7960386273
2 changed files with 0 additions and 12 deletions
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9
drivers/staging/dgnc/dgnc_driver.c
View file

@ -355,7 +355,6 @@ static void dgnc_cleanup_board(struct dgnc_board *brd)
}
}
kfree(brd->flipbuf);
dgnc_Board[brd->boardnum] = NULL;
@ -581,14 +580,6 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
brd->msgbuf_head = NULL;
spin_unlock_irqrestore(&dgnc_global_lock, flags);
/*
* allocate flip buffer for board.
*
* Okay to malloc with GFP_KERNEL, we are not at interrupt
* context, and there are no locks held.
*/
brd->flipbuf = kzalloc(MYFLIPLEN, GFP_KERNEL);
wake_up_interruptible(&brd->state_wait);
return 0;

3
drivers/staging/dgnc/dgnc_driver.h
View file

@ -212,8 +212,6 @@ struct dgnc_board {
uint TtyRefCnt;
char *flipbuf; /* Our flip buffer, alloced if board is found */
u16 dpatype; /* The board "type", as defined by DPA */
u16 dpastatus; /* The board "status", as defined by DPA */
@ -288,7 +286,6 @@ struct un_t {
#define CH_TX_FIFO_LWM 0x0800 /* TX Fifo is below Low Water */
#define CH_BREAK_SENDING 0x1000 /* Break is being sent */
#define CH_LOOPBACK 0x2000 /* Channel is in lookback mode */
#define CH_FLIPBUF_IN_USE 0x4000 /* Channel's flipbuf is in use */
#define CH_BAUD0 0x08000 /* Used for checking B0 transitions */
#define CH_FORCED_STOP 0x20000 /* Output is forcibly stopped */
#define CH_FORCED_STOPI 0x40000 /* Input is forcibly stopped */