Changeset b5cfeab4 in mainline for uspace/lib/usbhost/src/batch.c

Timestamp:

2011-08-31T14:01:14Z (13 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

8d70937

Parents:

07f49ae

Message:

libusbhost: only copy data if the pointer is valid

File:

• uspace/lib/usbhost/src/batch.c (modified) (1 diff)

uspace/lib/usbhost/src/batch.c

@@ -128 +128 @@
 
         /* We are data in, we need data */
-        memcpy(instance->buffer, instance->data_buffer, instance->buffer_size);
+        if (instance->data_buffer && (instance->buffer != instance->data_buffer))
+                memcpy(instance->buffer,
+                    instance->data_buffer, instance->buffer_size);
 
         usb_log_debug2("Batch %p " USB_TRANSFER_BATCH_FMT " completed (%zuB): %s.\n",