'mode' is malloced in mode_store() and should be freed before leaving
from the error handling cases, otherwise it will cause memory leak.
Fixes: 615c164da0eb ("intel_th: msu: Introduce buffer interface")
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
---
drivers/hwtracing/intel_th/msu.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c
index fc9f15f36ad4..2e7a04f566d4 100644
--- a/drivers/hwtracing/intel_th/msu.c
+++ b/drivers/hwtracing/intel_th/msu.c
@@ -1849,8 +1849,10 @@ mode_store(struct device *dev, struct device_attribute *attr, const char *buf,
mode = kstrndup(buf, len, GFP_KERNEL);
i = match_string(msc_mode, ARRAY_SIZE(msc_mode), mode);
- if (i >= 0)
+ if (i >= 0) {
+ kfree(mode);
goto found;
+ }
/* Buffer sinks only work with a usable IRQ */
if (!msc->do_irq) {
