A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-12 15:49:17 -04:00
Code Issues Projects Releases Packages Wiki Activity

coresight: byte-cnter: Add ETR status check in bypass notifier

Browse source 
It is possible that notify call is called after etr is disabled or
after mode switch from usb to etr. Add etr status check to avoid
exception.

Change-Id: I65e81e5ec01ebb3747936cdd81f886632c5419f1
Signed-off-by: Tao,Zhang <taozha@codeaurora.org>
This commit is contained in:
Tao,Zhang 2020-06-02 13:32:08 +08:00 • committed by Gerrit - the friendly Code Review server
commit 89ac6c47b8
1 changed files with 7 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

7
drivers/hwtracing/coresight/coresight-byte-cntr.c
View file

@ -517,6 +517,13 @@ void usb_bypass_notifier(void *priv, unsigned int event,
if (!drvdata)
return;
if (tmcdrvdata->out_mode != TMC_ETR_OUT_MODE_USB
|| tmcdrvdata->mode == CS_MODE_DISABLED) {
dev_err(&tmcdrvdata->csdev->dev,
"%s: ETR is not USB mode, or ETR is disabled.\n", __func__);
return;
}
switch (event) {
case USB_QDSS_CONNECT:
usb_qdss_alloc_req(ch, USB_BUF_NUM);