xiaoxiang781216 commented on code in PR #17531:
URL: https://github.com/apache/nuttx/pull/17531#discussion_r2670766620
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drivers/timers/timer.c:
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@@ -150,11 +150,7 @@ static int timer_open(FAR struct file *filep)
/* Get exclusive access to the device structures */
- ret = nxmutex_lock(&upper->lock);
- if (ret < 0)
- {
- goto errout;
- }
+ nxmutex_lock(&upper->lock);
Review Comment:
> I think it is better to keep the error checking and add a "tmrerr()" to
report that the lock failed for some reason (print the return error).
nxmutex_lock() can fail if interrupted by a signal, if the lock parameter is
invalid, etc.
>
but signal can't interrupt mutex
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