Re: [PATCH v1 1/1] usb: cdc_acm: prevent race at write to acm while system resumes

2018-02-15 Thread sathyanarayanan kuppuswamy
Hi Greg, On 02/15/2018 09:37 AM, Greg KH wrote: Why hasn't the author of this patch signed off on it? This patch has been initially submitted with Gerrit-ID and some custom tags. During the scrubbing process of this unrelated details, I think the automated script accidentally deleted the sign

Re: [PATCH v1 1/1] usb: cdc_acm: prevent race at write to acm while system resumes

2018-02-15 Thread Greg KH
On Mon, Feb 12, 2018 at 12:15:03PM -0800, sathyanarayan.kuppusw...@linux.intel.com wrote: > From: Dominik Bozek > > ACM driver may accept data to transmit while system is not fully > resumed. In this case ACM driver buffers data and prepare URBs > on usb anchor list. > There is a little chance t

Re: [PATCH v1 1/1] usb: cdc_acm: prevent race at write to acm while system resumes

2018-02-13 Thread Oliver Neukum
Am Montag, den 12.02.2018, 12:15 -0800 schrieb sathyanarayan.kuppusw...@linux.intel.com: > From: Dominik Bozek > > ACM driver may accept data to transmit while system is not fully > resumed. In this case ACM driver buffers data and prepare URBs > on usb anchor list. > There is a little chance tha

[PATCH v1 1/1] usb: cdc_acm: prevent race at write to acm while system resumes

2018-02-12 Thread sathyanarayan . kuppuswamy
From: Dominik Bozek ACM driver may accept data to transmit while system is not fully resumed. In this case ACM driver buffers data and prepare URBs on usb anchor list. There is a little chance that two tasks put a char and initiate acm_tty_flush_chars(). In such a case, driver will put one URB tw