V4L/DVB: s2255drv: firmware reload on timeout
Signed-off-by: Dean Anderson <linux-dev@sensoray.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c
index 4dc001b..ac9c40c 100644
--- a/drivers/media/video/s2255drv.c
+++ b/drivers/media/video/s2255drv.c
@@ -58,7 +58,7 @@
#include <linux/usb.h>
#define S2255_MAJOR_VERSION 1
-#define S2255_MINOR_VERSION 19
+#define S2255_MINOR_VERSION 20
#define S2255_RELEASE 0
#define S2255_VERSION KERNEL_VERSION(S2255_MAJOR_VERSION, \
S2255_MINOR_VERSION, \
@@ -1755,7 +1755,7 @@
== S2255_FW_SUCCESS) ||
(atomic_read(&dev->fw_data->fw_state)
== S2255_FW_DISCONNECTING)),
- msecs_to_jiffies(S2255_LOAD_TIMEOUT));
+ msecs_to_jiffies(S2255_LOAD_TIMEOUT));
/* state may have changed, re-read */
state = atomic_read(&dev->fw_data->fw_state);
break;
@@ -1763,27 +1763,38 @@
default:
break;
}
- mutex_unlock(&dev->open_lock);
/* state may have changed in above switch statement */
switch (state) {
case S2255_FW_SUCCESS:
break;
case S2255_FW_FAILED:
printk(KERN_INFO "2255 firmware load failed.\n");
+ mutex_unlock(&dev->open_lock);
return -ENODEV;
case S2255_FW_DISCONNECTING:
printk(KERN_INFO "%s: disconnecting\n", __func__);
+ mutex_unlock(&dev->open_lock);
return -ENODEV;
case S2255_FW_LOADED_DSPWAIT:
case S2255_FW_NOTLOADED:
printk(KERN_INFO "%s: firmware not loaded yet"
"please try again later\n",
__func__);
+ /*
+ * Timeout on firmware load means device unusable.
+ * Set firmware failure state.
+ * On next s2255_open the firmware will be reloaded.
+ */
+ atomic_set(&dev->fw_data->fw_state,
+ S2255_FW_FAILED);
+ mutex_unlock(&dev->open_lock);
return -EAGAIN;
default:
printk(KERN_INFO "%s: unknown state\n", __func__);
+ mutex_unlock(&dev->open_lock);
return -EFAULT;
}
+ mutex_unlock(&dev->open_lock);
/* allocate + initialize per filehandle data */
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
if (NULL == fh)
@@ -2074,7 +2085,6 @@
dprintk(5, "setmode ready %d\n", cc);
break;
case S2255_RESPONSE_FW:
-
dev->chn_ready |= (1 << cc);
if ((dev->chn_ready & 0x0f) != 0x0f)
break;