Changeset 46577995 in mainline for uspace/lib/c/generic/device/led_dev.c

Timestamp:

2018-01-04T20:50:52Z (8 years ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Children:

e211ea04

Parents:

facacc71

git-author:

Jiří Zárevúcky <zarevucky.jiri@…> (2018-01-04 20:47:53)

git-committer:

Jiří Zárevúcky <zarevucky.jiri@…> (2018-01-04 20:50:52)

Message:

Use errno_t in all uspace and kernel code.

Change type of every variable, parameter and return value that holds an
<errno.h> constant to either errno_t (the usual case), or sys_errno_t
(some places in kernel). This is for the purpose of self-documentation,
as well as for type-checking with a bit of type definition hackery.

After this commit, HelenOS is free of code that mixes error codes with non-error
values on the assumption that error codes are negative.

File:

• uspace/lib/c/generic/device/led_dev.c (modified) (2 diffs)

uspace/lib/c/generic/device/led_dev.c

@@ -39 +39 @@
 #include <device/led_dev.h>
 
-int led_dev_color_set(async_sess_t *sess, pixel_t pixel)
+errno_t led_dev_color_set(async_sess_t *sess, pixel_t pixel)
 {
         async_exch_t *exch = async_exchange_begin(sess);
@@ -48 +48 @@
         async_exchange_end(exch);
         
-        int rc;
+        errno_t rc;
         async_wait_for(req, &rc);
         
-        return (int) rc;
+        return (errno_t) rc;
 }