Changeset fddffb2 in mainline for uspace/drv/bus/usb/ehci/res.c

Timestamp:

2014-01-02T21:30:58Z (10 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

19b3cc6

Parents:

2ef8023

Message:

ehci: Check op success to avoid endless loop

File:

• uspace/drv/bus/usb/ehci/res.c (modified) (1 diff)

uspace/drv/bus/usb/ehci/res.c

@@ -100 +100 @@
         ret = pci_config_space_read_32(
             parent_sess, eecp + USBLEGSUP_OFFSET, &usblegsup);
-        while ((wait < DEFAULT_WAIT) && (usblegsup & USBLEGSUP_BIOS_CONTROL)) {
+        while ((ret == EOK) && (wait < DEFAULT_WAIT)
+            && (usblegsup & USBLEGSUP_BIOS_CONTROL)) {
                 async_usleep(WAIT_STEP);
                 ret = pci_config_space_read_32(parent_sess,