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rpmsg fixes for v4.14

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This corrects two mistakes in the Qualcomm GLINK SMEM driver.
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Merge tag 'rpmsg-v4.14-fixes' of git://github.com/andersson/remoteproc

Pull rpmsg fixes from Bjorn Andersson:
 "This corrects two mistakes in the Qualcomm GLINK SMEM driver"

* tag 'rpmsg-v4.14-fixes' of git://github.com/andersson/remoteproc:
  rpmsg: glink: Fix memory leak in qcom_glink_alloc_intent()
  rpmsg: glink: Unlock on error in qcom_glink_request_intent()
This commit is contained in:
Linus Torvalds 2017-10-11 12:01:38 -07:00
parent 9add7e3e36 b775d15853
commit ff5abbe799
1 changed files with 10 additions and 4 deletions
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14
drivers/rpmsg/qcom_glink_native.c
View file

@ -635,19 +635,18 @@ qcom_glink_alloc_intent(struct qcom_glink *glink,
unsigned long flags;
intent = kzalloc(sizeof(*intent), GFP_KERNEL);
if (!intent)
return NULL;
intent->data = kzalloc(size, GFP_KERNEL);
if (!intent->data)
return NULL;
goto free_intent;
spin_lock_irqsave(&channel->intent_lock, flags);
ret = idr_alloc_cyclic(&channel->liids, intent, 1, -1, GFP_ATOMIC);
if (ret < 0) {
spin_unlock_irqrestore(&channel->intent_lock, flags);
return NULL;
goto free_data;
}
spin_unlock_irqrestore(&channel->intent_lock, flags);
@ -656,6 +655,12 @@ qcom_glink_alloc_intent(struct qcom_glink *glink,
intent->reuse = reuseable;
return intent;
free_data:
kfree(intent->data);
free_intent:
kfree(intent);
return NULL;
}
static void qcom_glink_handle_rx_done(struct qcom_glink *glink,
@ -1197,7 +1202,7 @@ static int qcom_glink_request_intent(struct qcom_glink *glink,
ret = qcom_glink_tx(glink, &cmd, sizeof(cmd), NULL, 0, true);
if (ret)
return ret;
goto unlock;
ret = wait_for_completion_timeout(&channel->intent_req_comp, 10 * HZ);
if (!ret) {
@ -1207,6 +1212,7 @@ static int qcom_glink_request_intent(struct qcom_glink *glink,
ret = channel->intent_req_result ? 0 : -ECANCELED;
}
unlock:
mutex_unlock(&channel->intent_req_lock);
return ret;
}