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author | Arjan van de Ven <arjan@infradead.org> | 2006-01-11 15:55:29 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-03-20 14:49:55 -0800 |
commit | 4186ecf8ad16dd05759a09594de6a87e48759ba6 (patch) | |
tree | 3ee5292d9f4a36e3eb359b586289ec972bcbaf39 /drivers/usb/core/hub.c | |
parent | 35cce732d9d4d9af6b4ad4d26d8f8c0eddb573a2 (diff) | |
download | kernel_goldelico_gta04-4186ecf8ad16dd05759a09594de6a87e48759ba6.zip kernel_goldelico_gta04-4186ecf8ad16dd05759a09594de6a87e48759ba6.tar.gz kernel_goldelico_gta04-4186ecf8ad16dd05759a09594de6a87e48759ba6.tar.bz2 |
[PATCH] USB: convert a bunch of USB semaphores to mutexes
the patch below converts a bunch of semaphores-used-as-mutex in the USB
code to mutexes
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/hub.c')
-rw-r--r-- | drivers/usb/core/hub.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 650d5ee..867fa81 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -22,6 +22,7 @@ #include <linux/usb.h> #include <linux/usbdevice_fs.h> #include <linux/kthread.h> +#include <linux/mutex.h> #include <asm/semaphore.h> #include <asm/uaccess.h> @@ -2162,7 +2163,7 @@ static int hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, int retry_counter) { - static DECLARE_MUTEX(usb_address0_sem); + static DEFINE_MUTEX(usb_address0_mutex); struct usb_device *hdev = hub->hdev; int i, j, retval; @@ -2183,7 +2184,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, if (oldspeed == USB_SPEED_LOW) delay = HUB_LONG_RESET_TIME; - down(&usb_address0_sem); + mutex_lock(&usb_address0_mutex); /* Reset the device; full speed may morph to high speed */ retval = hub_port_reset(hub, port1, udev, delay); @@ -2381,7 +2382,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, fail: if (retval) hub_port_disable(hub, port1, 0); - up(&usb_address0_sem); + mutex_unlock(&usb_address0_mutex); return retval; } |