3 files changed, 12 insertions, 22 deletions

diff --git a/rbutil/rbutilqt/base/autodetection.cpp b/rbutil/rbutilqt/base/autodetection.cpp
index 8fba1d8cea..a453fa8d60 100644
--- a/rbutil/rbutilqt/base/autodetection.cpp
+++ b/rbutil/rbutilqt/base/autodetection.cpp
@@ -167,9 +167,8 @@ bool Autodetection::detect()
 
     // try sansapatcher
     // initialize sector buffer. Needed.
-    sansa_sectorbuf = NULL;
-    sansa_alloc_buffer(&sansa_sectorbuf, BUFFER_SIZE);
     struct sansa_t sansa;
+    sansa_alloc_buffer(&sansa, BUFFER_SIZE);
     n = sansa_scan(&sansa);
     if(n == 1) {
         qDebug() << "[Autodetect] Sansa found:" << sansa.targetname << "at" << sansa.diskname;
@@ -187,8 +186,8 @@ bool Autodetection::detect()
     else {
         qDebug() << "[Autodetect] sansapatcher: no Sansa found." << n;
     }
-    free(sansa_sectorbuf);
-    sansa_sectorbuf = NULL;
+    free(sansa.sectorbuf);
+    sansa.sectorbuf = NULL;
 
     if(m_mountpoint.isEmpty() && m_device.isEmpty()
             && m_errdev.isEmpty() && m_incompat.isEmpty())
diff --git a/rbutil/rbutilqt/base/bootloaderinstallsansa.cpp b/rbutil/rbutilqt/base/bootloaderinstallsansa.cpp
index b05839e297..061ec2578f 100644
--- a/rbutil/rbutilqt/base/bootloaderinstallsansa.cpp
+++ b/rbutil/rbutilqt/base/bootloaderinstallsansa.cpp
@@ -27,22 +27,17 @@ BootloaderInstallSansa::BootloaderInstallSansa(QObject *parent)
         : BootloaderInstallBase(parent)
 {
     (void)parent;
-    // initialize sector buffer. sansa_sectorbuf is instantiated by
-    // sansapatcher.
-    // The buffer itself is only present once, so make sure to not allocate
-    // it if it was already allocated. The application needs to take care
-    // no concurrent (i.e. multiple objects of this class running) requests
-    // are done.
-    if(sansa_sectorbuf == NULL)
-        sansa_alloc_buffer(&sansa_sectorbuf, BUFFER_SIZE);
+    // initialize sector buffer. The sector buffer is part of the sansa_t
+    // structure, so a second instance of this class will have its own buffer.
+    sansa_alloc_buffer(&sansa, BUFFER_SIZE);
 }
 
 
 BootloaderInstallSansa::~BootloaderInstallSansa()
 {
-    if(sansa_sectorbuf) {
-        free(sansa_sectorbuf);
-        sansa_sectorbuf = NULL;
+    if(sansa.sectorbuf) {
+        free(sansa.sectorbuf);
+        sansa.sectorbuf = NULL;
     }
 }
 
@@ -51,7 +46,7 @@ BootloaderInstallSansa::~BootloaderInstallSansa()
  */
 bool BootloaderInstallSansa::install(void)
 {
-    if(sansa_sectorbuf == NULL) {
+    if(sansa.sectorbuf == NULL) {
         emit logItem(tr("Error: can't allocate buffer memory!"), LOGERROR);
         return false;
         emit done(true);
@@ -59,8 +54,6 @@ bool BootloaderInstallSansa::install(void)
 
     emit logItem(tr("Searching for Sansa"), LOGINFO);
 
-    struct sansa_t sansa;
-
     int n = sansa_scan(&sansa);
     if(n == -1) {
         emit logItem(tr("Permission for disc access denied!\n"
@@ -95,7 +88,6 @@ bool BootloaderInstallSansa::install(void)
  */
 void BootloaderInstallSansa::installStage2(void)
 {
-    struct sansa_t sansa;
     unsigned char* buf = NULL;
     unsigned int len;
 
@@ -174,8 +166,6 @@ void BootloaderInstallSansa::installStage3(bool mounted)
  */
 bool BootloaderInstallSansa::uninstall(void)
 {
-    struct sansa_t sansa;
-
     emit logItem(tr("Uninstalling bootloader"), LOGINFO);
     QCoreApplication::processEvents();
 
@@ -222,7 +212,6 @@ bool BootloaderInstallSansa::uninstall(void)
  */
 BootloaderInstallBase::BootloaderType BootloaderInstallSansa::installed(void)
 {
-    struct sansa_t sansa;
     int num;
 
     if(!sansaInitialize(&sansa)) {
diff --git a/rbutil/rbutilqt/base/bootloaderinstallsansa.h b/rbutil/rbutilqt/base/bootloaderinstallsansa.h
index 55a6341534..40dc89ff25 100644
--- a/rbutil/rbutilqt/base/bootloaderinstallsansa.h
+++ b/rbutil/rbutilqt/base/bootloaderinstallsansa.h
@@ -21,6 +21,7 @@
 
 #include <QtCore>
 #include "bootloaderinstallbase.h"
+#include "sansapatcher.h"
 
 
 // bootloader installation class for devices handled by sansapatcher.
@@ -38,6 +39,7 @@ class BootloaderInstallSansa : public BootloaderInstallBase
 
     private:
         bool sansaInitialize(struct sansa_t *);
+        struct sansa_t sansa;
 
     private slots:
         void installStage2(void);