[PATCH] Fix SIGSEGV in dlabel feature (#556390)

[Martin Sivak <msivak@xxxxxxxxxx>]

---
 loader/driverdisk.c |   11 ++++-------
 loader/loader.c     |    7 +++++++
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/loader/driverdisk.c b/loader/driverdisk.c
index e2acbc8..769d075 100644
--- a/loader/driverdisk.c
+++ b/loader/driverdisk.c
@@ -841,20 +841,17 @@ GSList* findDriverDiskByLabel(void)
         return NULL;
     }
 
-    if ((ddDevice = g_slist_alloc())==NULL) {
-        logMessage(ERROR, "Cannot allocate space for list of devices");
-        return NULL;
-    }
-
     bIter = blkid_dev_iterate_begin(bCache);
     blkid_dev_set_search(bIter, "LABEL", ddLabel);
     while ((res = blkid_dev_next(bIter, &bDev)) == 0) {
         bDev = blkid_verify(bCache, bDev);
         if (!bDev)
             continue;
+
+        char *devname = strdup(blkid_dev_devname(bDev));
         logMessage(DEBUGLVL, "Adding driver disc %s to the list "
-                             "of available DDs.", blkid_dev_devname(bDev));
-        ddDevice = g_slist_prepend(ddDevice, (gpointer)blkid_dev_devname(bDev));
+                             "of available DDs.", devname);
+        ddDevice = g_slist_prepend(ddDevice, (gpointer)devname);
         /* Freeing bDev is taken care of by the put cache call */
     }
     blkid_dev_iterate_end(bIter);
diff --git a/loader/loader.c b/loader/loader.c
index d8d5fd5..9bf7c2f 100644
--- a/loader/loader.c
+++ b/loader/loader.c
@@ -1971,12 +1971,19 @@ int main(int argc, char ** argv) {
         dd = findDriverDiskByLabel();
         dditer = dd;
         while(dditer) {
+            /* load the DD */
             if (loadDriverDiskFromPartition(&loaderData, (char*)(dditer->data))) {
                 logMessage(ERROR, "Automatic driver disk loader failed for %s.", (char*)(dditer->data));
             }
             else {
                 logMessage(INFO, "Automatic driver disk loader succeeded for %s.", (char*)(dditer->data));
             }
+            
+            /* clean the device record */
+            free((char*)(dditer->data));
+            dditer->data = NULL;
+
+            /* next DD */
             dditer = g_slist_next(dditer);
         }
         g_slist_free(dd);
-- 
1.6.6

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