Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=940408289842677cfe9e053a6c423bf3fb922560 Commit: 940408289842677cfe9e053a6c423bf3fb922560 Parent: f2cac67dd36626128e06e79fc7ca95d544dcdc67 Author: Matthias Kaehlcke <[EMAIL PROTECTED]> AuthorDate: Tue Jul 17 04:04:16 2007 -0700 Committer: Linus Torvalds <[EMAIL PROTECTED]> CommitDate: Tue Jul 17 10:23:05 2007 -0700
use mutex instead of semaphore in SPI core/init code The SPI core/init code uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <[EMAIL PROTECTED]> Acked-by: David Brownell <[EMAIL PROTECTED]> Signed-off-by: Andrew Morton <[EMAIL PROTECTED]> Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]> --- drivers/spi/spi.c | 11 ++++++----- 1 files changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 4831edb..018884d 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -23,6 +23,7 @@ #include <linux/device.h> #include <linux/init.h> #include <linux/cache.h> +#include <linux/mutex.h> #include <linux/spi/spi.h> @@ -185,7 +186,7 @@ struct boardinfo { }; static LIST_HEAD(board_list); -static DECLARE_MUTEX(board_lock); +static DEFINE_MUTEX(board_lock); /** @@ -292,9 +293,9 @@ spi_register_board_info(struct spi_board_info const *info, unsigned n) bi->n_board_info = n; memcpy(bi->board_info, info, n * sizeof *info); - down(&board_lock); + mutex_lock(&board_lock); list_add_tail(&bi->list, &board_list); - up(&board_lock); + mutex_unlock(&board_lock); return 0; } @@ -308,7 +309,7 @@ scan_boardinfo(struct spi_master *master) struct boardinfo *bi; struct device *dev = master->cdev.dev; - down(&board_lock); + mutex_lock(&board_lock); list_for_each_entry(bi, &board_list, list) { struct spi_board_info *chip = bi->board_info; unsigned n; @@ -330,7 +331,7 @@ scan_boardinfo(struct spi_master *master) (void) spi_new_device(master, chip); } } - up(&board_lock); + mutex_unlock(&board_lock); } /*-------------------------------------------------------------------------*/ - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html