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-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-v4l2.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
index 5ffa0d2b0b0..aaafa0398fd 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
@@ -883,6 +883,17 @@ static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip)
{
struct pvr2_hdw *hdw = dip->v4lp->channel.mc_head->hdw;
enum pvr2_config cfg = dip->config;
+ char msg[80];
+ unsigned int mcnt;
+
+ /* Construct the unregistration message *before* we actually
+ perform the unregistration step. By doing it this way we don't
+ have to worry about potentially touching deleted resources. */
+ mcnt = scnprintf(msg, sizeof(msg) - 1,
+ "pvrusb2: unregistered device %s [%s]",
+ video_device_node_name(&dip->devbase),
+ pvr2_config_get_name(cfg));
+ msg[mcnt] = 0;
pvr2_hdw_v4l_store_minor_number(hdw,dip->minor_type,-1);
@@ -894,9 +905,7 @@ static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip)
are gone. */
video_unregister_device(&dip->devbase);
- printk(KERN_INFO "pvrusb2: unregistered device %s [%s]\n",
- video_device_node_name(&dip->devbase),
- pvr2_config_get_name(cfg));
+ printk(KERN_INFO "%s\n", msg);
}