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Check return from nxsem_wait_initialize()

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Resolution of Issue 619 will require multiple steps, this part of the first step in that resolution:  Every call to nxsem_wait_uninterruptible() must handle the return value from nxsem_wait_uninterruptible properly.  This commit is only for rwbuffer.c and those files under drivers/serial, drivers/timers, and drivers/usbdev.

This commit completes that step for all of the files under drivers/.  Still remaining:  All of the files under arch/.
This commit is contained in:
Gregory Nutt
2020-04-01 10:13:52 -06:00
committed by Alan Carvalho de Assis
parent a7415058e5
commit 9ff1795760
8 changed files with 727 additions and 549 deletions
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drivers/net/tun.c
+1 -1
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@@ -1260,7 +1260,7 @@ static ssize_t tun_read(FAR struct file *filep, FAR char *buffer,
size_t buflen)
{
FAR struct tun_device_s *priv = filep->f_priv;
ssize_t nread;
ssize_t nread = 0;
int ret;
if (priv == NULL)