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| author | William Wilgus <wilgus.william@gmail.com> | 2021-08-03 22:22:02 -0400 |
|---|---|---|
| committer | William Wilgus <me.theuser@yahoo.com> | 2021-08-05 11:01:29 +0000 |
| commit | cb6b0d2c0e8835d360f85384d3eef53fcc17dc5a (patch) | |
| tree | 03261e895018fea97d2cdcbeb6ef89b0e83a46ed /firmware | |
| parent | d57900ae124d4b5553db6666959a6533d9e337b5 (diff) | |
disk.c ensure a valid volume is returned from get_free_volume()
volume is used for element math and indexing into buffers
-1 volume is bad
Change-Id: I1ec75ef3a848c154ea80905224ea9a3a14bf8151
Diffstat (limited to 'firmware')
| -rw-r--r-- | firmware/common/disk.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/firmware/common/disk.c b/firmware/common/disk.c index 51d033b678..c096878e86 100644 --- a/firmware/common/disk.c +++ b/firmware/common/disk.c @@ -174,6 +174,13 @@ int disk_mount(int drive) int volume = get_free_volume(); + if (volume < 0) + { + DEBUGF("No Free Volumes\n"); + disk_writer_unlock(); + return 0; + } + if (!disk_init(IF_MD(drive))) { disk_writer_unlock(); |