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[2.0.x] Fix null check in lsDive (#10978)

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Giuliano 2018-06-10 05:03:49 +02:00 committed by Scott Lahteine
parent d82704354f
commit e970e429b6
1 changed files with 2 additions and 2 deletions
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4
Marlin/src/sd/cardreader.cpp
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@ -110,8 +110,8 @@ void CardReader::lsDive(const char *prepend, SdFile parent, const char * const m
createFilename(dosFilename, p);
// Allocate enough stack space for the full path to a folder, trailing slash, and nul
bool prepend_is_empty = (prepend[0] == '\0');
int len = (prepend_is_empty ? 1 : strlen(prepend)) + strlen(dosFilename) + 1 + 1;
const bool prepend_is_empty = (!prepend || prepend[0] == '\0');
const int len = (prepend_is_empty ? 1 : strlen(prepend)) + strlen(dosFilename) + 1 + 1;
char path[len];
// Append the FOLDERNAME12/ to the passed string.