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serial: amba-pl011: Use __releases/__acquires annotations

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Fix the following sparse warnings:

drivers/tty/serial/amba-pl011.c:687:20: warning: context imbalance in 'pl011_dma_flush_buffer' - unexpected unlock
drivers/tty/serial/amba-pl011.c:1200:13: warning: context imbalance in 'pl011_rx_chars' - unexpected unlock

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Fabio Estevam
2013-08-09 17:58:51 -03:00
committed by Greg Kroah-Hartman
parent 8ad2ee955b
commit b83286bfa8
1 changed files with 4 additions and 0 deletions
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4
drivers/tty/serial/amba-pl011.c
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@@ -677,6 +677,8 @@ static inline bool pl011_dma_tx_start(struct uart_amba_port *uap)
* Locking: called with port lock held and IRQs disabled. * Locking: called with port lock held and IRQs disabled.
*/ */
static void pl011_dma_flush_buffer(struct uart_port *port) static void pl011_dma_flush_buffer(struct uart_port *port)
__releases(&uap->port.lock)
__acquires(&uap->port.lock)
{ {
struct uart_amba_port *uap = (struct uart_amba_port *)port; struct uart_amba_port *uap = (struct uart_amba_port *)port;
@@ -1198,6 +1200,8 @@ static void pl011_enable_ms(struct uart_port *port)
} }
static void pl011_rx_chars(struct uart_amba_port *uap) static void pl011_rx_chars(struct uart_amba_port *uap)
__releases(&uap->port.lock)
__acquires(&uap->port.lock)
{ {
pl011_fifo_to_tty(uap); pl011_fifo_to_tty(uap);