Changeset b7fd2a0 in mainline for uspace/drv/bus/usb/uhci/hc.c

Timestamp:

2018-01-13T03:10:29Z (7 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/bus/usb/uhci/hc.c (modified) (10 diffs)

uspace/drv/bus/usb/uhci/hc.c

@@ -94 +94 @@
 
 static void hc_init_hw(const hc_t *instance);
-static int hc_init_mem_structures(hc_t *instance);
-static int hc_init_transfer_lists(hc_t *instance);
-
-static int hc_debug_checker(void *arg);
+static errno_t hc_init_mem_structures(hc_t *instance);
+static errno_t hc_init_transfer_lists(hc_t *instance);
+
+static errno_t hc_debug_checker(void *arg);
 
 
@@ -107 +107 @@
  * @return Error code.
  */
-int uhci_hc_gen_irq_code(irq_code_t *code, const hw_res_list_parsed_t *hw_res, int *irq)
+errno_t uhci_hc_gen_irq_code(irq_code_t *code, const hw_res_list_parsed_t *hw_res, int *irq)
 {
         assert(code);
@@ -216 +216 @@
  * interrupt fibrils.
  */
-int hc_init(hc_t *instance, const hw_res_list_parsed_t *hw_res, bool interrupts)
+errno_t hc_init(hc_t *instance, const hw_res_list_parsed_t *hw_res, bool interrupts)
 {
         assert(instance);
@@ -228 +228 @@
 
         /* allow access to hc control registers */
-        int ret = pio_enable_range(&hw_res->io_ranges.ranges[0],
+        errno_t ret = pio_enable_range(&hw_res->io_ranges.ranges[0],
             (void **) &instance->registers);
         if (ret != EOK) {
@@ -318 +318 @@
  *  - frame list page (needs to be one UHCI hw accessible 4K page)
  */
-int hc_init_mem_structures(hc_t *instance)
+errno_t hc_init_mem_structures(hc_t *instance)
 {
         assert(instance);
@@ -330 +330 @@
 
         /* Init transfer lists */
-        int ret = hc_init_transfer_lists(instance);
+        errno_t ret = hc_init_transfer_lists(instance);
         if (ret != EOK) {
                 usb_log_error("Failed to initialize transfer lists.\n");
@@ -359 +359 @@
  * USB scheduling. Sets pointer table for quick access.
  */
-int hc_init_transfer_lists(hc_t *instance)
+errno_t hc_init_transfer_lists(hc_t *instance)
 {
         assert(instance);
 #define SETUP_TRANSFER_LIST(type, name) \
 do { \
-        int ret = transfer_list_init(&instance->transfers_##type, name); \
+        errno_t ret = transfer_list_init(&instance->transfers_##type, name); \
         if (ret != EOK) { \
                 usb_log_error("Failed to setup %s transfer list: %s.\n", \
@@ -411 +411 @@
 }
 
-int uhci_hc_status(hcd_t *hcd, uint32_t *status)
+errno_t uhci_hc_status(hcd_t *hcd, uint32_t *status)
 {
         assert(hcd);
@@ -435 +435 @@
  * Checks for bandwidth availability and appends the batch to the proper queue.
  */
-int uhci_hc_schedule(hcd_t *hcd, usb_transfer_batch_t *batch)
+errno_t uhci_hc_schedule(hcd_t *hcd, usb_transfer_batch_t *batch)
 {
         assert(hcd);
@@ -464 +464 @@
  * @return EOK (should never return)
  */
-int hc_debug_checker(void *arg)
+errno_t hc_debug_checker(void *arg)
 {
         hc_t *instance = arg;