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authorKees Cook <keescook@chromium.org>2017-10-04 17:49:29 -0700
committerJens Axboe <axboe@kernel.dk>2017-11-14 20:10:35 -0700
commitb1bf42105aad7c976907665923bc53ce2244e494 (patch)
tree6d8902d88f504e15a7d3375790e2838acf7925d0 /drivers/block
parent37cb8e1f8e10c6e9bd2a1b95cdda0620a21b0551 (diff)
downloadlinux-b1bf42105aad7c976907665923bc53ce2244e494.tar.bz2
block/floppy: Convert callback to pass timer_list
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to passing in the timer pointer explicitly. Calculate the drive from the offset of the timer in the timer list. Cc: Jiri Kosina <jikos@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Ming Lei <tom.leiming@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Geliang Tang <geliangtang@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/floppy.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index a54183935aa1..eae484acfbbc 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -903,10 +903,14 @@ static void unlock_fdc(void)
}
/* switches the motor off after a given timeout */
-static void motor_off_callback(unsigned long nr)
+static void motor_off_callback(struct timer_list *t)
{
+ unsigned long nr = t - motor_off_timer;
unsigned char mask = ~(0x10 << UNIT(nr));
+ if (WARN_ON_ONCE(nr >= N_DRIVE))
+ return;
+
set_dor(FDC(nr), mask, 0);
}
@@ -3047,7 +3051,7 @@ static void raw_cmd_done(int flag)
else
raw_cmd->flags &= ~FD_RAW_DISK_CHANGE;
if (raw_cmd->flags & FD_RAW_NO_MOTOR_AFTER)
- motor_off_callback(current_drive);
+ motor_off_callback(&motor_off_timer[current_drive]);
if (raw_cmd->next &&
(!(raw_cmd->flags & FD_RAW_FAILURE) ||
@@ -4542,7 +4546,7 @@ static int __init do_floppy_init(void)
disks[drive]->fops = &floppy_fops;
sprintf(disks[drive]->disk_name, "fd%d", drive);
- setup_timer(&motor_off_timer[drive], motor_off_callback, drive);
+ timer_setup(&motor_off_timer[drive], motor_off_callback, 0);
}
err = register_blkdev(FLOPPY_MAJOR, "fd");