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[PATCH] cpqphp: fix oops during unload without probe

Browse Source 
drivers/pci/hotplug/cpqphp_core.c calls cpqphp_event_start_thread()
in one_time_init(), which is called whenever the hardware is probed.
Unfortunately, cpqphp_event_stop_thread() is *always* called when
the module is unloaded. If the hardware is never probed, then
cpqphp_event_stop_thread() tries to manipulate a couple of
uninitialized mutexes.

Signed-off-by: Keith Moore <keithmo@exmsft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Keith Moore 2005-06-02 12:42:37 +02:00 committed by Greg Kroah-Hartman
parent 70549ad9cf
commit 4002307d2b
1 changed files with 3 additions and 2 deletions
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5
drivers/pci/hotplug/cpqphp_core.c
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@ -60,6 +60,7 @@ static void __iomem *smbios_start;
static void __iomem *cpqhp_rom_start;
static int power_mode;
static int debug;
static int initialized;
#define DRIVER_VERSION "0.9.8"
#define DRIVER_AUTHOR "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>"
@ -1271,7 +1272,6 @@ static int one_time_init(void)
{
int loop;
int retval = 0;
static int initialized = 0;
if (initialized)
return 0;
@ -1441,7 +1441,8 @@ static void __exit unload_cpqphpd(void)
}
// Stop the notification mechanism
cpqhp_event_stop_thread();
if (initialized)
cpqhp_event_stop_thread();
//unmap the rom address
if (cpqhp_rom_start)