[PATCH] USB: SN9C10x driver updates

SN9C10x driver updates:

- Use kzalloc() instead of kmalloc()
- Move some macro definitions from sn9c102.h to sn9c102_core.c
- Use vfree() and vmalloc_32() instead of rvfree() and rvmalloc()
- Fix mmap() sys call
- Documentation updates

Signed-off-by: Luca Risolia <luca.risolia@studio.unibo.it>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 11 deletions

diff --git a/drivers/usb/media/sn9c102_sensor.h b/drivers/usb/media/sn9c102_sensor.h
index a0e561b2c85..7d953b24f2f 100644
--- a/drivers/usb/media/sn9c102_sensor.h
+++ b/drivers/usb/media/sn9c102_sensor.h
@@ -196,10 +196,11 @@ extern int sn9c102_pread_reg(struct sn9c102_device*, u16 index);
 /*
    NOTE: there are no exported debugging functions. To uniform the output you
    must use the dev_info()/dev_warn()/dev_err() macros defined in device.h,
-   already included here, the argument being the struct device 'dev' of the
-   sensor structure. Do NOT use these macros before the sensor is attached or
-   the kernel will crash! However, you should not need to notify the user about
-   common errors or other messages, since this is done by the master module.
+   already included here, the argument being the struct device '&usbdev->dev'
+   of the sensor structure. Do NOT use these macros before the sensor is
+   attached or the kernel will crash! However, you should not need to notify
+   the user about common errors or other messages, since this is done by the
+   master module.
 */
 
 /*****************************************************************************/
@@ -358,13 +359,6 @@ struct sn9c102_sensor {
 	   error code without rolling back.
 	*/
 
-	const struct device* dev;
-	/*
-	   This is the argument for dev_err(), dev_info() and dev_warn(). It
-	   is used for debugging purposes. You must not access the struct
-	   before the sensor is attached.
-	*/
-
 	const struct usb_device* usbdev;
 	/*
 	   Points to the usb_device struct after the sensor is attached.