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-rw-r--r--core/qthelper.cpp6
1 files changed, 5 insertions, 1 deletions
diff --git a/core/qthelper.cpp b/core/qthelper.cpp
index 885e89d98..088067f26 100644
--- a/core/qthelper.cpp
+++ b/core/qthelper.cpp
@@ -1075,6 +1075,8 @@ QByteArray hashFile(const QString filename)
void learnHash(struct picture *picture, QByteArray hash)
{
+ if (hash.isNull())
+ return;
if (picture->hash)
free(picture->hash);
QMutexLocker locker(&hashOfMutex);
@@ -1100,6 +1102,8 @@ QString localFilePath(const QString originalFilename)
QString fileFromHash(char *hash)
{
+ if (!hash || !*hash)
+ return "";
QMutexLocker locker(&hashOfMutex);
return localFilenameOf[QByteArray::fromHex(hash)];
@@ -1120,7 +1124,7 @@ void hashPicture(struct picture *picture)
if (!picture)
return;
char *oldHash = copy_string(picture->hash);
- learnHash(picture, hashFile(QString(picture->filename)));
+ learnHash(picture, hashFile(localFilePath(picture->filename)));
if (!same_string(picture->hash, "") && !same_string(picture->hash, oldHash))
mark_divelist_changed((true));
free(oldHash);