From 7960386273f12bb46e3ffde2822a1eb254b66af8 Mon Sep 17 00:00:00 2001 From: "Gujulan Elango, Hari Prasath (H.)" Date: Fri, 29 May 2015 07:17:37 +0000 Subject: [PATCH] staging: dgnc: delete all references to 'flipbuf' 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 Signed-off-by: Greg Kroah-Hartman --- drivers/staging/dgnc/dgnc_driver.c | 9 --------- drivers/staging/dgnc/dgnc_driver.h | 3 --- 2 files changed, 12 deletions(-) diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c index 805dc617e3a7..7546aff65002 100644 --- a/drivers/staging/dgnc/dgnc_driver.c +++ b/drivers/staging/dgnc/dgnc_driver.c @@ -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; diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h index f77fed57b873..3dee9f392fb3 100644 --- a/drivers/staging/dgnc/dgnc_driver.h +++ b/drivers/staging/dgnc/dgnc_driver.h @@ -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 */