Changeset b7fd2a0 in mainline for uspace/drv/platform/pc/pc.c

Timestamp:

2018-01-13T03:10:29Z (6 years ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

a53ed3a

Parents:

36f0738

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.

Although this is a massive commit, it is a simple text replacement, and thus
is very easy to verify. Simply do the following:

`
git checkout <this commit's hash>
git reset HEAD
<sup>git add .
tools/srepl '\berrno_t\b' int
git add .
tools/srepl '\bsys_errno_t\b' sysarg_t
git reset
git diff
`</sup>

While this doesn't ensure that the replacements are correct, it does ensure
that the commit doesn't do anything except those replacements. Since errno_t
is typedef'd to int in the usual case (and sys_errno_t to sysarg_t), even if
incorrect, this commit cannot change behavior.

File:

• uspace/drv/platform/pc/pc.c (modified) (4 diffs)

uspace/drv/platform/pc/pc.c

@@ -59 +59 @@
 } pc_fun_t;
 
-static int pc_dev_add(ddf_dev_t *dev);
+static errno_t pc_dev_add(ddf_dev_t *dev);
 static void pc_init(void);
 
@@ -125 +125 @@
 }
 
-static int pc_enable_interrupt(ddf_fun_t *fun, int irq)
+static errno_t pc_enable_interrupt(ddf_fun_t *fun, int irq)
 {
         /* TODO */
@@ -159 +159 @@
         
         ddf_fun_t *fnode = NULL;
-        int rc;
+        errno_t rc;
         
         /* Create new device. */
@@ -205 +205 @@
  * @return              Zero on success, error number otherwise.
  */
-static int pc_dev_add(ddf_dev_t *dev)
+static errno_t pc_dev_add(ddf_dev_t *dev)
 {
         ddf_msg(LVL_DEBUG, "pc_dev_add, device handle = %d",