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| author | Oliver Neukum <oneukum@suse.com> | 2020-05-26 14:44:20 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-10 21:35:00 +0200 |
| commit | b7bf32f76dd255646dcb2d9a8f5e61f8b8be7120 (patch) | |
| tree | 7e24eddb428ea74de7846c934b585bda5ee6d867 /drivers | |
| parent | 695fd932ac5c18364498091e17e463ff269132ab (diff) | |
| download | linux-stable-b7bf32f76dd255646dcb2d9a8f5e61f8b8be7120.tar.gz linux-stable-b7bf32f76dd255646dcb2d9a8f5e61f8b8be7120.tar.bz2 linux-stable-b7bf32f76dd255646dcb2d9a8f5e61f8b8be7120.zip | |
CDC-ACM: heed quirk also in error handling
commit 97fe809934dd2b0b37dfef3a2fc70417f485d7af upstream.
If buffers are iterated over in the error case, the lower limits
for quirky devices must be heeded.
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reported-by: Jean Rene Dawin <jdawin@math.uni-bielefeld.de>
Fixes: a4e7279cd1d19 ("cdc-acm: introduce a cool down")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200526124420.22160-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 10ba1b4f0dbf..e8b9b27937ed 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -590,7 +590,7 @@ static void acm_softint(struct work_struct *work) } if (test_and_clear_bit(ACM_ERROR_DELAY, &acm->flags)) { - for (i = 0; i < ACM_NR; i++) + for (i = 0; i < acm->rx_buflimit; i++) if (test_and_clear_bit(i, &acm->urbs_in_error_delay)) acm_submit_read_urb(acm, i, GFP_NOIO); } |