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-rw-r--r--src/corelib/io/qiodevice.cpp13
1 files changed, 6 insertions, 7 deletions
diff --git a/src/corelib/io/qiodevice.cpp b/src/corelib/io/qiodevice.cpp
index f2cef4e1..bb11d6b 100644
--- a/src/corelib/io/qiodevice.cpp
+++ b/src/corelib/io/qiodevice.cpp
@@ -755,7 +755,6 @@ qint64 QIODevice::bytesToWrite() const
qint64 QIODevice::read(char *data, qint64 maxSize)
{
Q_D(QIODevice);
- CHECK_READABLE(read, qint64(-1));
#if defined QIODEVICE_DEBUG
printf("%p QIODevice::read(%p, %d), d->pos = %d, d->buffer.size() = %d\n",
@@ -786,13 +785,13 @@ qint64 QIODevice::read(char *data, qint64 maxSize)
do {
// Try reading from the buffer.
int lastReadChunkSize = d->buffer.read(data, maxSize);
- *d->pPos += lastReadChunkSize;
- readSoFar += lastReadChunkSize;
- // fast exit when satisfied by buffer
- if (lastReadChunkSize == maxSize && !(d->openMode & Text))
- return readSoFar;
-
if (lastReadChunkSize > 0) {
+ *d->pPos += lastReadChunkSize;
+ readSoFar += lastReadChunkSize;
+ // fast exit when satisfied by buffer
+ if (lastReadChunkSize == maxSize && !(d->openMode & Text))
+ return readSoFar;
+
data += lastReadChunkSize;
maxSize -= lastReadChunkSize;
#if defined QIODEVICE_DEBUG