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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>
This commit is contained in:
Mauro Carvalho Chehab 2010-04-07 16:19:36 -03:00
parent c373cabfbb
commit 6eb9435b87
4 changed files with 4 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/media/IR/ir-nec-decoder.c
View File

@ -25,7 +25,7 @@
/* Used to register nec_decoder clients */ /* Used to register nec_decoder clients */
static LIST_HEAD(decoder_list); static LIST_HEAD(decoder_list);
static spinlock_t decoder_lock; static DEFINE_SPINLOCK(decoder_lock);
enum nec_state { enum nec_state {
STATE_INACTIVE, STATE_INACTIVE,

4
drivers/media/IR/ir-raw-event.c
View File

@ -21,7 +21,7 @@
/* Used to handle IR raw handler extensions */ /* Used to handle IR raw handler extensions */
static LIST_HEAD(ir_raw_handler_list); 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 * 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) void ir_raw_init(void)
{ {
spin_lock_init(&ir_raw_handler_lock);
#ifdef MODULE #ifdef MODULE
INIT_WORK(&wq_load, init_decoders); INIT_WORK(&wq_load, init_decoders);
schedule_work(&wq_load); schedule_work(&wq_load);

2
drivers/media/IR/ir-rc5-decoder.c
View File

@ -29,7 +29,7 @@ static unsigned int ir_rc5_remote_gap = 888888;
/* Used to register rc5_decoder clients */ /* Used to register rc5_decoder clients */
static LIST_HEAD(decoder_list); static LIST_HEAD(decoder_list);
static spinlock_t decoder_lock; static DEFINE_SPINLOCK(decoder_lock);
enum rc5_state { enum rc5_state {
STATE_INACTIVE, STATE_INACTIVE,

3
drivers/media/IR/rc-map.c
View File

@ -17,8 +17,7 @@
/* Used to handle IR raw handler extensions */ /* Used to handle IR raw handler extensions */
static LIST_HEAD(rc_map_list); 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) static struct rc_keymap *seek_rc_map(const char *name)
{ {