diff options
| author | Shashank Mittal <mittals@codeaurora.org> | 2016-06-15 13:44:34 -0700 |
|---|---|---|
| committer | Kyle Yan <kyan@codeaurora.org> | 2016-06-23 13:59:20 -0700 |
| commit | 9d8b4c94fd7619b107782d8b33892bc2f4dd14be (patch) | |
| tree | c939426033b445659da6a1a20823a33f4dea130a | |
| parent | 68f9e10a741e8ce4f2ee70abf9a064f1a026f259 (diff) | |
coresight-tmc: fix read_count for tmc_open
'read_count' is used to reference count simultaneous TMC read requests.
This count should reset to zero in case tmc_read_preapare fails.
Change-Id: Iaded781ee76ec3b079ac9cd9d551bdfb42834fd9
Signed-off-by: Shashank Mittal <mittals@codeaurora.org>
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tmc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc.c b/drivers/hwtracing/coresight/coresight-tmc.c index ca1c1b98f877..199234e1bba4 100644 --- a/drivers/hwtracing/coresight/coresight-tmc.c +++ b/drivers/hwtracing/coresight/coresight-tmc.c @@ -1148,8 +1148,10 @@ static int tmc_open(struct inode *inode, struct file *file) goto out; ret = tmc_read_prepare(drvdata); - if (ret) + if (ret) { + drvdata->read_count--; return ret; + } out: nonseekable_open(inode, file); |