diff options
author | Jiri Kosina <jkosina@suse.cz> | 2017-05-02 11:02:41 +0200 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2017-05-02 11:02:41 +0200 |
commit | 4d6ca227c768b50b05cf183974b40abe444e9d0c (patch) | |
tree | bf953d8e895281053548b9967a2c4b58d641df00 /drivers/usb/core/message.c | |
parent | 800f3eef8ebc1264e9c135bfa892c8ae41fa4792 (diff) | |
parent | af22a610bc38508d5ea760507d31be6b6983dfa8 (diff) |
Merge branch 'for-4.12/asus' into for-linus
Diffstat (limited to 'drivers/usb/core/message.c')
-rw-r--r-- | drivers/usb/core/message.c | 33 |
1 files changed, 15 insertions, 18 deletions
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index dea55914d641..2184ef40a82a 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -122,12 +122,11 @@ static int usb_internal_control_msg(struct usb_device *usb_dev, * This function sends a simple control message to a specified endpoint and * waits for the message to complete, or timeout. * - * Don't use this function from within an interrupt context, like a bottom half - * handler. If you need an asynchronous message, or need to send a message - * from within interrupt context, use usb_submit_urb(). - * If a thread in your driver uses this call, make sure your disconnect() - * method can wait for it to complete. Since you don't have a handle on the - * URB used, you can't cancel the request. + * Don't use this function from within an interrupt context. If you need + * an asynchronous message, or need to send a message from within interrupt + * context, use usb_submit_urb(). If a thread in your driver uses this call, + * make sure your disconnect() method can wait for it to complete. Since you + * don't have a handle on the URB used, you can't cancel the request. * * Return: If successful, the number of bytes transferred. Otherwise, a negative * error number. @@ -173,12 +172,11 @@ EXPORT_SYMBOL_GPL(usb_control_msg); * This function sends a simple interrupt message to a specified endpoint and * waits for the message to complete, or timeout. * - * Don't use this function from within an interrupt context, like a bottom half - * handler. If you need an asynchronous message, or need to send a message - * from within interrupt context, use usb_submit_urb() If a thread in your - * driver uses this call, make sure your disconnect() method can wait for it to - * complete. Since you don't have a handle on the URB used, you can't cancel - * the request. + * Don't use this function from within an interrupt context. If you need + * an asynchronous message, or need to send a message from within interrupt + * context, use usb_submit_urb() If a thread in your driver uses this call, + * make sure your disconnect() method can wait for it to complete. Since you + * don't have a handle on the URB used, you can't cancel the request. * * Return: * If successful, 0. Otherwise a negative error number. The number of actual @@ -207,12 +205,11 @@ EXPORT_SYMBOL_GPL(usb_interrupt_msg); * This function sends a simple bulk message to a specified endpoint * and waits for the message to complete, or timeout. * - * Don't use this function from within an interrupt context, like a bottom half - * handler. If you need an asynchronous message, or need to send a message - * from within interrupt context, use usb_submit_urb() If a thread in your - * driver uses this call, make sure your disconnect() method can wait for it to - * complete. Since you don't have a handle on the URB used, you can't cancel - * the request. + * Don't use this function from within an interrupt context. If you need + * an asynchronous message, or need to send a message from within interrupt + * context, use usb_submit_urb() If a thread in your driver uses this call, + * make sure your disconnect() method can wait for it to complete. Since you + * don't have a handle on the URB used, you can't cancel the request. * * Because there is no usb_interrupt_msg() and no USBDEVFS_INTERRUPT ioctl, * users are forced to abuse this routine by using it to submit URBs for |