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| author | Jiri Slaby <jirislaby@gmail.com> | 2007-10-18 03:06:25 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-18 14:37:27 -0700 |
| commit | 8cf5a8c5729116d0d60815393ec9f1c0f0bc2df7 (patch) | |
| tree | d5a8c13703b02c8d6f05a3cb3e7273991071244f /drivers/char/rocket.c | |
| parent | 95e0791480af8347460d0cbe34a46eca7e77d0d0 (diff) | |
| download | linux-stable-8cf5a8c5729116d0d60815393ec9f1c0f0bc2df7.tar.gz linux-stable-8cf5a8c5729116d0d60815393ec9f1c0f0bc2df7.tar.bz2 linux-stable-8cf5a8c5729116d0d60815393ec9f1c0f0bc2df7.zip | |
Char: rocket, switch sleep_on to completion
rocket, switch sleep_on to completion
- sleep_on is deprecated and racy, use completion instead
- also check retval of interruptible function and return ERESTARTSYS
eventually
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/rocket.c')
| -rw-r--r-- | drivers/char/rocket.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c index 56cbba7b6ec0..d790b08525b4 100644 --- a/drivers/char/rocket.c +++ b/drivers/char/rocket.c @@ -84,6 +84,7 @@ #include <linux/mutex.h> #include <linux/ioport.h> #include <linux/delay.h> +#include <linux/completion.h> #include <linux/wait.h> #include <linux/pci.h> #include <asm/uaccess.h> @@ -650,7 +651,7 @@ static void init_r_port(int board, int aiop, int chan, struct pci_dev *pci_dev) info->closing_wait = 3000; info->close_delay = 50; init_waitqueue_head(&info->open_wait); - init_waitqueue_head(&info->close_wait); + init_completion(&info->close_wait); info->flags &= ~ROCKET_MODE_MASK; switch (pc104[board][line]) { case 422: @@ -878,7 +879,8 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, if (tty_hung_up_p(filp)) return ((info->flags & ROCKET_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS); if (info->flags & ROCKET_CLOSING) { - interruptible_sleep_on(&info->close_wait); + if (wait_for_completion_interruptible(&info->close_wait)) + return -ERESTARTSYS; return ((info->flags & ROCKET_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS); } @@ -983,8 +985,10 @@ static int rp_open(struct tty_struct *tty, struct file *filp) return -ENOMEM; if (info->flags & ROCKET_CLOSING) { - interruptible_sleep_on(&info->close_wait); + retval = wait_for_completion_interruptible(&info->close_wait); free_page(page); + if (retval) + return retval; return ((info->flags & ROCKET_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS); } @@ -1176,7 +1180,7 @@ static void rp_close(struct tty_struct *tty, struct file *filp) } info->flags &= ~(ROCKET_INITIALIZED | ROCKET_CLOSING | ROCKET_NORMAL_ACTIVE); tty->closing = 0; - wake_up_interruptible(&info->close_wait); + complete_all(&info->close_wait); atomic_dec(&rp_num_ports_open); #ifdef ROCKET_DEBUG_OPEN |