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-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-hdw.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index 4f6bb58ca5f..f907a56c587 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -1854,10 +1854,19 @@ int pvr2_hdw_initialize(struct pvr2_hdw *hdw,
void *callback_data)
{
LOCK_TAKE(hdw->big_lock); do {
+ if (hdw->flag_disconnected) {
+ /* Handle a race here: If we're already
+ disconnected by this point, then give up. If we
+ get past this then we'll remain connected for
+ the duration of initialization since the entire
+ initialization sequence is now protected by the
+ big_lock. */
+ break;
+ }
hdw->state_data = callback_data;
hdw->state_func = callback_func;
+ pvr2_hdw_setup(hdw);
} while (0); LOCK_GIVE(hdw->big_lock);
- pvr2_hdw_setup(hdw);
return hdw->flag_init_ok;
}