CheryDan commented on a change in pull request #4814:
URL: https://github.com/apache/incubator-nuttx/pull/4814#discussion_r746211212
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File path: net/can/can_recvmsg.c
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@@ -622,7 +623,14 @@ ssize_t can_recvmsg(FAR struct socket *psock, FAR struct
msghdr *msg,
* socket has been disconnected.
*/
+ /* The following operations must be performed with interrupts
+ * disabled because iob_tryadd_queue() may be called from an interrupt
Review comment:
iob_tryalloc_qentry is already in CAN interrupt ,but iob_remove_queue in
can_recvmsg does not hold critical section
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