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| author | Anton Tikhomirov <av.tikhomirov@samsung.com> | 2013-11-26 03:46:05 +0100 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2013-11-26 17:58:18 +0100 |
| commit | 16e569e9661ea2b964b8abb607a51e5285254021 (patch) | |
| tree | 528220cbbd28bb3ab6e16ea0603d9da38a153490 /drivers/usb/phy/phy-fsm-usb.h | |
| parent | usb: phy: fsm: protect against multiple inclusions (diff) | |
| download | linux-16e569e9661ea2b964b8abb607a51e5285254021.tar.xz linux-16e569e9661ea2b964b8abb607a51e5285254021.zip | |
usb: phy: replace spinlock with mutex in OTG FSM
OTG Final State Machine calls functions which may sleep.
For example, start_gadget callback implementation can use
usb_gadget_vbus_connect(), whose context: can sleep.
If so, mutex should be used instead of spinlock.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/phy/phy-fsm-usb.h')
| -rw-r--r-- | drivers/usb/phy/phy-fsm-usb.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h index 200f4d156020..b6ba1bfb86f2 100644 --- a/drivers/usb/phy/phy-fsm-usb.h +++ b/drivers/usb/phy/phy-fsm-usb.h @@ -18,7 +18,7 @@ #ifndef __LINUX_USB_OTG_FSM_H #define __LINUX_USB_OTG_FSM_H -#include <linux/spinlock.h> +#include <linux/mutex.h> #include <linux/errno.h> #undef VERBOSE @@ -116,7 +116,7 @@ struct otg_fsm { /* Current usb protocol used: 0:undefine; 1:host; 2:client */ int protocol; - spinlock_t lock; + struct mutex lock; }; struct otg_fsm_ops { |