From e5860c18e68606446a10c3e926a2a0162c385cbf Mon Sep 17 00:00:00 2001 From: Nicholas Mc Guire Date: Sun, 1 Feb 2015 11:55:37 -0500 Subject: [PATCH] mtd: pxa3xx_nand: cleanup wait_for_completion handling return type of wait_for_completion_timeout is unsigned long not int, this patch uses the return value of wait_for_completion_timeout in the condition directly rather than assigning it to an incorrect type variable. The variable used for handling the return of wait_for_cmpletion_timeout was int but should be unsigned long, where it was not in use for anything else and the return value in case of completion (>0) is not used it was removed and wait_for_completion_timeout() used directly in the if condition. To make the timeout values a bit simpler to read and also handle all of the corner cases correctly the declarations are moved to msecs_to_jiffies(). The timeout declaration cleanup is just for readability Signed-off-by: Nicholas Mc Guire Signed-off-by: Brian Norris --- drivers/mtd/nand/pxa3xx_nand.c | 24 ++++++++++-------------- 1 file changed, 10 insertions(+), 14 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index b1ecb570d154..a4615fcc3d00 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -38,8 +38,8 @@ #include -#define CHIP_DELAY_TIMEOUT (2 * HZ/10) -#define NAND_STOP_DELAY (2 * HZ/50) +#define CHIP_DELAY_TIMEOUT msecs_to_jiffies(200) +#define NAND_STOP_DELAY msecs_to_jiffies(40) #define PAGE_CHUNK_SIZE (2048) /* @@ -965,7 +965,7 @@ static void nand_cmdfunc(struct mtd_info *mtd, unsigned command, { struct pxa3xx_nand_host *host = mtd->priv; struct pxa3xx_nand_info *info = host->info_data; - int ret, exec_cmd; + int exec_cmd; /* * if this is a x16 device ,then convert the input @@ -997,9 +997,8 @@ static void nand_cmdfunc(struct mtd_info *mtd, unsigned command, info->need_wait = 1; pxa3xx_nand_start(info); - ret = wait_for_completion_timeout(&info->cmd_complete, - CHIP_DELAY_TIMEOUT); - if (!ret) { + if (!wait_for_completion_timeout(&info->cmd_complete, + CHIP_DELAY_TIMEOUT)) { dev_err(&info->pdev->dev, "Wait time out!!!\n"); /* Stop State Machine for next command cycle */ pxa3xx_nand_stop(info); @@ -1014,7 +1013,7 @@ static void nand_cmdfunc_extended(struct mtd_info *mtd, { struct pxa3xx_nand_host *host = mtd->priv; struct pxa3xx_nand_info *info = host->info_data; - int ret, exec_cmd, ext_cmd_type; + int exec_cmd, ext_cmd_type; /* * if this is a x16 device then convert the input @@ -1077,9 +1076,8 @@ static void nand_cmdfunc_extended(struct mtd_info *mtd, init_completion(&info->cmd_complete); pxa3xx_nand_start(info); - ret = wait_for_completion_timeout(&info->cmd_complete, - CHIP_DELAY_TIMEOUT); - if (!ret) { + if (!wait_for_completion_timeout(&info->cmd_complete, + CHIP_DELAY_TIMEOUT)) { dev_err(&info->pdev->dev, "Wait time out!!!\n"); /* Stop State Machine for next command cycle */ pxa3xx_nand_stop(info); @@ -1212,13 +1210,11 @@ static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this) { struct pxa3xx_nand_host *host = mtd->priv; struct pxa3xx_nand_info *info = host->info_data; - int ret; if (info->need_wait) { - ret = wait_for_completion_timeout(&info->dev_ready, - CHIP_DELAY_TIMEOUT); info->need_wait = 0; - if (!ret) { + if (!wait_for_completion_timeout(&info->dev_ready, + CHIP_DELAY_TIMEOUT)) { dev_err(&info->pdev->dev, "Ready time out!!!\n"); return NAND_STATUS_FAIL; }