diff options
Diffstat (limited to 'arch/arm/mach-realview/clock.c')
| -rw-r--r-- | arch/arm/mach-realview/clock.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/arm/mach-realview/clock.c b/arch/arm/mach-realview/clock.c index ec3f7e798623..21325a4da9da 100644 --- a/arch/arm/mach-realview/clock.c +++ b/arch/arm/mach-realview/clock.c @@ -14,6 +14,7 @@ #include <linux/errno.h> #include <linux/err.h> #include <linux/clk.h> +#include <linux/mutex.h> #include <asm/semaphore.h> #include <asm/hardware/icst307.h> @@ -21,20 +22,20 @@ #include "clock.h" static LIST_HEAD(clocks); -static DECLARE_MUTEX(clocks_sem); +static DEFINE_MUTEX(clocks_mutex); struct clk *clk_get(struct device *dev, const char *id) { struct clk *p, *clk = ERR_PTR(-ENOENT); - down(&clocks_sem); + mutex_lock(&clocks_mutex); list_for_each_entry(p, &clocks, node) { if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) { clk = p; break; } } - up(&clocks_sem); + mutex_unlock(&clocks_mutex); return clk; } @@ -109,18 +110,18 @@ static struct clk mmci_clk = { int clk_register(struct clk *clk) { - down(&clocks_sem); + mutex_lock(&clocks_mutex); list_add(&clk->node, &clocks); - up(&clocks_sem); + mutex_unlock(&clocks_mutex); return 0; } EXPORT_SYMBOL(clk_register); void clk_unregister(struct clk *clk) { - down(&clocks_sem); + mutex_lock(&clocks_mutex); list_del(&clk->node); - up(&clocks_sem); + mutex_unlock(&clocks_mutex); } EXPORT_SYMBOL(clk_unregister); |