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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-04-07 21:19:36 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-05-19 17:57:01 +0200 |
| commit | 6eb9435b874ae5ff56d56952167a8e9be5c5deeb (patch) | |
| tree | a31bd6732a7396d7350baf5e5019b4037737609b /drivers | |
| parent | V4L/DVB: em28xx: fix a regression caused by the rc-map changes (diff) | |
| download | linux-6eb9435b874ae5ff56d56952167a8e9be5c5deeb.tar.xz linux-6eb9435b874ae5ff56d56952167a8e9be5c5deeb.zip | |
V4L/DVB: ir: Make sure that the spinlocks are properly initialized
Some spinlocks are not properly initialized on ir core:
[ 471.714132] BUG: spinlock bad magic on CPU#0, modprobe/1899
[ 471.719838] lock: f92a08ac, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
[ 471.727301] Pid: 1899, comm: modprobe Not tainted 2.6.33 #36
[ 471.733062] Call Trace:
[ 471.735537] [<c1498793>] ? printk+0x1d/0x22
[ 471.739866] [<c12694e3>] spin_bug+0xa3/0xf0
[ 471.744224] [<c126962d>] do_raw_spin_lock+0x7d/0x160
[ 471.749364] [<f92a01ff>] ? ir_rc5_register+0x6f/0xf0 [ir_rc5_decoder]
So, use static initialization for the static spinlocks, instead of the
dynamic ones (currently used), as proposed by David Härdeman on one
of his RFC patches.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/IR/ir-nec-decoder.c | 2 | ||||
| -rw-r--r-- | drivers/media/IR/ir-raw-event.c | 4 | ||||
| -rw-r--r-- | drivers/media/IR/ir-rc5-decoder.c | 2 | ||||
| -rw-r--r-- | drivers/media/IR/rc-map.c | 3 |
4 files changed, 4 insertions, 7 deletions
diff --git a/drivers/media/IR/ir-nec-decoder.c b/drivers/media/IR/ir-nec-decoder.c index 9d1ada95aa72..18918e52c0c0 100644 --- a/drivers/media/IR/ir-nec-decoder.c +++ b/drivers/media/IR/ir-nec-decoder.c @@ -25,7 +25,7 @@ /* Used to register nec_decoder clients */ static LIST_HEAD(decoder_list); -static spinlock_t decoder_lock; +static DEFINE_SPINLOCK(decoder_lock); enum nec_state { STATE_INACTIVE, diff --git a/drivers/media/IR/ir-raw-event.c b/drivers/media/IR/ir-raw-event.c index 57990a337922..ddb3365adc82 100644 --- a/drivers/media/IR/ir-raw-event.c +++ b/drivers/media/IR/ir-raw-event.c @@ -21,7 +21,7 @@ /* Used to handle IR raw handler extensions */ static LIST_HEAD(ir_raw_handler_list); -static spinlock_t ir_raw_handler_lock; +static DEFINE_SPINLOCK(ir_raw_handler_lock); /** * RUN_DECODER() - runs an operation on all IR decoders @@ -205,8 +205,6 @@ static void init_decoders(struct work_struct *work) void ir_raw_init(void) { - spin_lock_init(&ir_raw_handler_lock); - #ifdef MODULE INIT_WORK(&wq_load, init_decoders); schedule_work(&wq_load); diff --git a/drivers/media/IR/ir-rc5-decoder.c b/drivers/media/IR/ir-rc5-decoder.c index a62277b625a8..6323066438b5 100644 --- a/drivers/media/IR/ir-rc5-decoder.c +++ b/drivers/media/IR/ir-rc5-decoder.c @@ -29,7 +29,7 @@ static unsigned int ir_rc5_remote_gap = 888888; /* Used to register rc5_decoder clients */ static LIST_HEAD(decoder_list); -static spinlock_t decoder_lock; +static DEFINE_SPINLOCK(decoder_lock); enum rc5_state { STATE_INACTIVE, diff --git a/drivers/media/IR/rc-map.c b/drivers/media/IR/rc-map.c index 2f6201ce1898..ff185c054267 100644 --- a/drivers/media/IR/rc-map.c +++ b/drivers/media/IR/rc-map.c @@ -17,8 +17,7 @@ /* Used to handle IR raw handler extensions */ static LIST_HEAD(rc_map_list); -static spinlock_t rc_map_lock; - +static DEFINE_SPINLOCK(rc_map_lock); static struct rc_keymap *seek_rc_map(const char *name) { |